1619 patents
Page 6 of 81
Utility
Bonded body of piezoelectric material substrate and supporting substrate
17 Oct 23
Yuji Hori, Takahiro Yamadera
Filed: 25 Jun 21
Utility
Bonded body of piezoelectric material substrate and supporting substrate
17 Oct 23
A bonded body includes a supporting substrate; a piezoelectric material substrate composed of a material selected from the group consisting of lithium niobate, lithium tantalate and lithium niobate-lithium tantalate; and a bonding layer bonding the supporting substrate and piezoelectric material substrate and contacting a main surface of the piezoelectric material substrate.
Takahiro Yamadera, Saki Nakayama, Yuji Hori
Filed: 24 Jun 21
Utility
Honeycomb Structure, Exhaust Gas Purification Device, and Production Method for Honeycomb Structure
12 Oct 23
A honeycomb structure including: an outer peripheral wall; a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path; and magnetic particles, wherein the magnetic particles contain secondary particles with primary particles combined, wherein in a cross-sectional image of the honeycomb structure, a ratio of a number of the primary particles forming the secondary particles to a total number of the primary particles of the magnetic particles is 40 to 100%, and wherein a particle size D50 corresponding to a cumulative frequency of 50% by number for the primary particles is 5 to 100 μm.
Shuichi ICHIKAWA, Yukio MIYAIRI, Masaaki MASUDA, Takuya ISHIHARA
Filed: 1 Jun 23
Utility
Gas Sensor and Concentration Correction Method for Use In Gas Sensor
12 Oct 23
A controller of a gas sensor includes: a concentration identification part identifying a concentration of a predetermined gas component based on a measurement pump current flowing between a measurement electrode and an out-of-space pump electrode in accordance with the concentration of the predetermined gas component due to application of a predetermined pump voltage; and a correction processing part correcting the concentration of the predetermined gas component identified by the concentration identification part, the correction processing part corrects the concentration of the predetermined gas component based on a correlation identified in advance between an offset current value as a magnitude of the measurement pump current when a measurement gas not containing the predetermined gas component flows or a normalized value of the offset current value and output fluctuations of the measurement pump current at startup of the gas sensor.
Yusuke WATANABE, Taku OKAMOTO
Filed: 26 Jan 23
Utility
Method for Producing Shrink-fitted Member
12 Oct 23
A method for producing a shrink-fitted member by arranging a pillar shaped ceramic body inside a deep-drawn stainless steel pipe and shrink-fitting them.
Fumitaka TAKEUCHI, Shuhei KUNO, Seiya SAWADA
Filed: 13 Feb 23
Utility
Gas Sensor
12 Oct 23
A casing of a gas sensor having a reference gas space therein includes: an outer tube into which an end portion of a sensor element protrudes; and a seal member fit into an end portion of the outer tube to seal the reference gas space, the sensor element includes: a first electrode lead portion including a first electrode lead to electrically connect an outside and at least one inner electrode and a first lead insulating layer covering the first electrode lead; and a second electrode lead portion including a second electrode lead that can electrically connect the outside and a measurement electrode and a second lead insulating layer covering the second electrode lead, and A/B < 1.00, where A (cm-1) is diffusion resistance of the first electrode lead portion, B (cm-1) is diffusion resistance of the second electrode lead portion.
Yusuke WATANABE, Taku OKAMOTO
Filed: 17 Mar 23
Utility
Work Test Apparatus and Method
12 Oct 23
Excessive detections of a defect(s) of a specified defect type is reduced.
Takafumi TERAHAI, Yoshihiro SATO, Kai YAMASHITA
Filed: 23 Mar 23
Utility
Member for semiconductor manufacturing apparatus and method for manufacturing the same
10 Oct 23
A member for semiconductor manufacturing apparatus includes an upper plate that has a wafer placement surface, that contains an electrostatic electrode and an upper auxiliary electrode parallel to each other, and that comprises ceramics; an intermediate plate that is joined to a surface of the upper plate opposite the wafer placement surface with a first metal joining layer interposed therebetween; and a lower plate that is joined to a surface of the intermediate plate opposite a surface joined to the upper plate with a second metal joining layer interposed therebetween and that contains a heater electrode and a lower auxiliary electrode parallel to each other.
Hiroshi Takebayashi, Joyo Ito
Filed: 15 Nov 21
Utility
Wafer placement apparatus
10 Oct 23
A wafer placement apparatus includes a ceramic plate having a top surface including a wafer placement surface, the ceramic plate allowing at least one of an electrostatic electrode and a heater electrode to be embedded therein; and a cooling plate disposed on an undersurface of the ceramic plate opposite to the wafer placement surface to cool the ceramic plate, wherein the cooling plate includes a coolant channel, and the coolant channel has a multi-layer structure at least partially including two or more layers stacked vertically, the two or more layers being spaced different distances apart from the wafer placement surface.
Joyo Ito
Filed: 27 Feb 20
Utility
Honeycomb Filter
5 Oct 23
A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells which serve as fluid through channels extending from a first end face to a second end face and a plugging portion provided at an open end on the first end face side or the second end face side of each of the cells, wherein the partition wall has an average number of branches of pores existing at the outermost surface of the partition wall of greater than 7.5 and less than 9.0.
Yudai KURIMOTO, Yasuyuki FURUTA, Fumihiko YOSHIOKA, Tatsuya OHASHI, Ayaka SAKAI, Ritsuko TERANISHI
Filed: 2 Mar 23
Utility
Honeycomb Filter
5 Oct 23
A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall and a plugging portion, wherein a thickness of the partition wall is 0.217 mm or less, a porosity of the partition wall is 57 to 63%, an average pore diameter of the partition wall is 6 to 14 μm, a number per unit area of pores which exist at a surface of the partition wall and which have equivalent circle opening diameters exceeding 3 μm is 800 to 1500 /mm2, an average equivalent circle opening diameter of pores which exist at a surface of the partition wall and which have equivalent circle opening diameters exceeding 3 μm is 6.7 to 12.5 μm, and in a pore diameter distribution of the partition wall, D10 is 3.0 to 7.0 μm, D90 is 13.0 to 27.0 μm, and (Log (D90)-Log (D10))/Log (D50) is 0.75 or less.
Yudai KURIMOTO, Fumihiko YOSHIOKA
Filed: 2 Mar 23
Utility
Honeycomb Filter
5 Oct 23
A honeycomb filter includes a honeycomb structure body that has porous partition walls disposed so as to surround cells, and plugging portions that are disposed at any one of the ends on the inflow end face and the ends on the outflow end face.
Fumihiko YOSHIOKA, Yudai KURIMOTO
Filed: 7 Feb 23
Utility
Honeycomb Structure, Electrically Heated Carrier, and Exhaust Gas Purification Device
5 Oct 23
A honeycomb structure includes: a honeycomb structure portion which includes an outer peripheral wall, and partition walls disposed inside the outer peripheral wall and partitioning a plurality of cells forming flow paths from one end surface to the other end surface; and a pair of electrode layers provided on an outer surface of the outer peripheral wall so as to extend in a strip shape along a direction in which the cells extend and sandwich a central axis of the honeycomb structure portion; wherein a porosity PW of the partition walls is 30% to 55%, and a ratio of the porosity PW of the partition walls to a porosity PO of the outer peripheral wall (PW/PO) satisfies 1<PW/PO≤1.8.
Kazumi MASE, Yuko KOZAKI
Filed: 23 Mar 23
Utility
Pillar-shaped Honeycomb Structure
5 Oct 23
Yasuhiro SHIGA, Shuji MURAMATSU, Koji MOTOKI
Filed: 1 Feb 23
Utility
Honeycomb Structure, Electrically Heated Carrier and Exhaust Gas Purification Device
5 Oct 23
A honeycomb structure including a honeycomb structure portion made of ceramics having an outer peripheral wall and partition walls disposed inside the outer peripheral wall and partitioning a plurality of cells; and a pair of electrode layers provided on an outer surface of the outer peripheral wall; wherein in a cross-section orthogonal to a direction in which the cells extend, assuming a coordinate value of a center of gravity O is 0, and a coordinate value of an inner peripheral surface of the outer peripheral wall is 1.00 R, an average value P1A of a porosity (%) of the partition walls in a range of coordinate values of 0 to 0.50 R and an average value P2A of a porosity (%) of the partition walls in a range of coordinate values of 0.50 R to 1.00 R satisfy a relationship of 1<P2A/P1A.
Taro OSADA
Filed: 8 Feb 23
Utility
Honeycomb Filter
5 Oct 23
A honeycomb filter includes: a honeycomb structure having porous partition walls disposed so as to surround cells, and plugging portions disposed at any one of ends on the inflow end face and the ends on the outflow end face, of cells.
Fumihiko YOSHIOKA, Yudai KURIMOTO
Filed: 24 Feb 23
Utility
Pillar-shaped Honeycomb Structure
5 Oct 23
A pillar-shaped honeycomb structure includes an outer peripheral side wall, and a plurality of partition walls partitioning a plurality of cells, wherein an average pore diameter of the partition walls measured by a mercury intrusion method specified in JIS R1655: 2003 is 3 to 10 μm, and when a cross-section of the plurality of partition walls is observed with an X-ray microscope and a porosity (%) is measured in a thickness direction from one surface to the other surface of each partition wall, assuming PAVE is an average porosity of each partition wall, P1 MIN is a minimum porosity from the one surface to a thickness of 5% of the partition wall, and P2MIN is a minimum porosity from the other surface to a thickness of 5% of the partition wall, 40% PAVE ≤70%, and {(P1 MIN+P2MIN)/2} /PAVE ≤0.9 are satisfied.
Shuji MURAMATSU, Yasuhiro SHIGA
Filed: 9 Mar 23
Utility
Method for Manufacturing Cylindrical Honeycomb Fired Body
5 Oct 23
A method for manufacturing a cylindrical honeycomb fired body including: preparing a cylindrical honeycomb formed body; obtaining a cylindrical honeycomb dried body by drying the cylindrical honeycomb formed body; calculating predetermined parameters (EAVE1, EAVE2, EAVE3 and EAVE4) from average values of distance between a center of gravity position O and an outer peripheral contour in a plurality of predetermined angle ranges; specifying a minimum value of the predetermined parameters; obtaining a cylindrical honeycomb fired body by placing the cylindrical honeycomb dried body on a shelf plate and firing it while passing it through a continuous firing furnace, such that the direction in which the cells of the cylindrical honeycomb dried body extend vertically, and a particular location on the outer peripheral side surface determined according to the minimum value is positioned at the front.
Yasunori YAMAZAKI, Kazuya KAGEYAMA, Yusuke HAYAKAWA
Filed: 10 Feb 23
Utility
Honeycomb Structure, Electrically Heated Carrier, and Exhaust Gas Purification Device
5 Oct 23
A honeycomb structure including an electrically conductive honeycomb structure portion, comprising an outer peripheral wall, and partition walls disposed inside the outer peripheral wall and partitioning a plurality of cells forming flow paths from one end surface to the other end surface; and a pair of electrode layers provided on an outer surface of the outer peripheral wall so as to face each other across a central axis of the honeycomb structure portion; wherein a coefficient of linear expansion of the honeycomb structure portion measured according to JIS R1618:2002 when temperature is changed from 40° C. to 300 ° C. is 4.1×10−6/° C. or more, and the coefficient of linear expansion of the honeycomb structure portion measured according to JIS R1618:2002 when the temperature is changed from 300 ° C. to 800 ° C. is 4.2×10−6/° C. or more and 4.8×10−6/° C. or less.
Mako HATTORI
Filed: 1 Feb 23
Utility
Sensor Element and Gas Sensor
5 Oct 23
A sensor element includes: an element body that includes a base part in an elongated plate shape and a measurement-object gas flow part; and a porous protective layer that is formed from one end and covers at least a part in the longitudinal direction of a surface of the element body.
Shotaro NIIZUMA, Yusuke WATANABE, Toshihiro HIRAKAWA, Kirari TAKAHASHI
Filed: 17 Mar 23