1619 patents
Page 40 of 81
Utility
Manufacturing method of honeycomb structure
5 Oct 21
Daiki Kato
Filed: 20 Jul 18
Utility
Aluminum nitride particles
5 Oct 21
Aluminum nitride particles used as a material of an aluminum nitride sintered compact are disclosed.
Hiroharu Kobayashi, Kazuki Iida, Yoshimasa Kobayashi
Filed: 19 Sep 19
Utility
Method of producing fired ceramic article and method of firing ceramic green body
5 Oct 21
The present disclosure is related to a method of producing a fired ceramic article.
Daniel Yukichi Kitaguchi, Takeshi Tokunaga
Filed: 20 Nov 18
Utility
Bonded body and elastic wave element
5 Oct 21
A bonded body includes a piezoelectric single crystal substrate; a supporting substrate composed of a polycrystalline ceramic material or a single crystal material; a bonding layer provided on the piezoelectric single crystal substrate and having a composition of Si(1-x)Ox (0.008≤x≤0.408); and an amorphous layer provided between the supporting substrate and bonding layer, the amorphous layer containing oxygen atoms and argon atoms.
Yudai Uno, Masashi Goto, Tomoyoshi Tai
Filed: 21 Dec 20
Utility
Pillar-shaped Honeycomb Structure and Method for Manufacturing Same
30 Sep 21
A pillar-shaped honeycomb structure filter including a plurality of first cells and a plurality of second cells, the first cells and the second cells being alternately arranged adjacent to each other with a porous partition wall interposed therebetween, wherein a ceramic porous film, in which an average film thickness T (unit: μm) is 2 to 50 μm, a porosity P (unit: %) is 65 to 90%, and the average film thickness T and the porosity P satisfy a relational expression of 0.36T+60≤P≤0.75T+72, is formed on a surface of each of the first cells.
Koichi SENDO
Filed: 14 Dec 20
Utility
Ceramic Filter
30 Sep 21
A ceramic filter having a pillar-shaped honeycomb structure, wherein when observing a plurality of pores from a surface of partition walls with a laser microscope and plotting an equivalent circle diameter (μm) of each pore on an X-axis and a pore depth (μm) of each pore on a Y-axis on a two-dimensional coordinate system, a slope of a regression line (y/x) obtained by a least squares method in a range of 20≤x≤40 is 0 to 0.20, an average value of the pore depth of the plurality of pores is 2.5 μm to 5.0 μm, and a number density of the plurality of pores is 600/mm2 to 2450/mm2.
Takayuki KANETAKE, Shingo TOKUDA, Shuji UEDA
Filed: 5 Feb 21
Utility
Honeycomb Filter
30 Sep 21
A honeycomb filter including: a pillar-shaped honeycomb structure having an inflow end face and an outflow end face and including a porous partition wall disposed so as to surround a plurality of cells, the plurality of cells extending from the inflow end face to the outflow end face; inflow side plugging portions disposed at open ends of predetermined cells on the inflow end face side; and outflow side plugging portions disposed at open ends of residual cells on the outflow end face side, wherein the outflow side plugging portions comprise first outflow side plugging portions and second outflow side plugging portions, the plugging length L1 of the first outflow side plugging portions is 10 to 50% of the overall length L0 of the honeycomb structure, and the plugging length L2 of the second outflow side plugging portions is less than 10% of the overall length L0 of the honeycomb structure.
Koji FUKUYO, Michio SUZUKI, Yasutaka WATANABE, Ken ITADU
Filed: 3 Feb 21
Utility
Porous Ceramic Structure and Method of Producing Porous Ceramic Structure
30 Sep 21
When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of Co3O4, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of Co3O4.
Yunie IZUMI, Kennichi HIDAKA, Akihiro MIURA
Filed: 15 Mar 21
Utility
Porous Ceramic Structure and Method of Producing Porous Ceramic Structure
30 Sep 21
When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of Co3O4, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of Co3O4.
Yunie IZUMI, Kennichi HIDAKA, Akihiro MIURA
Filed: 15 Mar 21
Utility
Pillar-shaped Honeycomb Structure and Method for Manufacturing Same
30 Sep 21
A pillar-shaped honeycomb structure including an outer peripheral side wall, a plurality of first cells provided on an inner peripheral side of the outer peripheral side wall, the first cells extending from a first end surface to a second end surface, each opening on the first end surface and having a sealing portion with an average void ratio of 4% or less on the second end surface, and a plurality of second cells provided on the inner peripheral side of the outer peripheral side wall, the second cells extending from the first end surface to the second end surface, each having a sealing portion with an average void ratio of 4% or less on the first end surface and opening on the second end surface, the first cells and the second cells being alternately arranged adjacent to each other with a partition wall interposed therebetween.
Shuji UEDA, Shungo NAGAI, Hiroaki HAYASHI
Filed: 17 Feb 21
Utility
METHOD FOR PRODUCING Cu-Ni-Sn ALLOY AND COOLER TO BE USED FOR SAME
30 Sep 21
There is provided a method for producing a Cu—Ni—Sn alloy by a continuous casting method or a semi-continuous casting method, the method including pouring a molten Cu—Ni—Sn alloy from one end of a mold, both ends of which are open, and continuously drawing out the alloy as an ingot from the other end of the mold while solidifying a part of the alloy, the part being near the mold; and spraying mist-like liquid on the drawn-out ingot to cool the ingot, thereby making a cast product of the Cu—Ni—Sn alloy.
Kensuke ISHII
Filed: 19 Mar 21
Utility
Lithium Secondary Cell
30 Sep 21
In a lithium secondary cell, a positive electrode includes a sheet-like positive current collector having conductivity and a positive active material plate that is a plate-like ceramic sintered body containing a lithium composite oxide.
Haruo OTSUKA, Tetsushige YOSHIDA
Filed: 11 Jun 21
Utility
Method for Manufacturing Honeycomb Structure Containing Silicon Carbide
30 Sep 21
A method for manufacturing a honeycomb structure containing silicon carbide, including blending a recycled raw material derived from a material constituting a first honeycomb structure containing silicon carbide in a process after firing as a part of an initial raw material for a second honeycomb structure containing silicon carbide, wherein the initial raw material comprises silicon carbide and metallic silicon; and the recycled raw material is a powder recovered from the material constituting the first honeycomb structure containing silicon carbide in the process after firing, and after the recovering, a particle size is adjusted so that a 10% diameter (D10) is 10 μm or more and a 50% diameter (D50) is 35 μm or less when a cumulative particle size distribution on a volume basis is measured by a laser diffraction/scattering method.
Taku NISHIGAKI, Suguru KODAMA, Keisuke KIMURA
Filed: 23 Feb 21
Utility
Beryllium Copper Alloy Ring and Method for Producing Same
30 Sep 21
Provided is a method for producing a beryllium copper alloy ring including: providing a columnar forged material made of a beryllium copper alloy, opening a hole from a center of an upper surface of the columnar forged material in a direction parallel to a central axis of the columnar forged material to make a ring intermediate product, performing ring forging on the ring intermediate product, thereby expanding the hole such that a reduction ratio of 63% or more is achieved to make a ring-forged product, wherein the reduction ratio is specified by the following expression: P=100×(T−t)/T, wherein P represents the reduction ratio (%), T represents a thickness (mm) of the ring intermediate product, and t represents a thickness (mm) of the ring-forged product, and performing a solution annealing and a precipitation hardening on the ring-forged product to make the beryllium copper alloy ring.
Kensuke ISHII
Filed: 17 Mar 21
Utility
SiC COMPOSITE SUBSTRATE AND SEMICONDUCTOR DEVICE
30 Sep 21
A SiC composite substrate includes a SiC single crystal layer and at least one biaxially oriented SiC layer.
Risa MIYAKAZE, Kiyoshi MATSUSHIMA, Jun YOSHIKAWA, Morimichi WATANABE
Filed: 11 Jun 21
Utility
Method for Manufacturing Pillar-shaped Honeycomb Structure Filter
30 Sep 21
A method for manufacturing a pillar-shaped honeycomb structure filter including a step of preparing a pillar-shaped honeycomb structure having a plurality of first cells and a plurality of second cells that are alternately arranged adjacent to each other with a porous partition wall interposed therebetween; a step of adhering ceramic particles containing 50% by mass or more in total of one or two selected from SiC and SiN to a surface of the first cells; and a step of performing a heat-oxidation treatment on the pillar-shaped honeycomb structure in which the ceramic particles are adhered to the surface of the first cells to form a porous film comprised of the ceramic particles having an oxide film thereon so as to satisfy: (1) 0.05≤T≤0.5; (2) 0.05≤T/D50; and (3) 4≤{(W1−W0)/W0×100}/D50.
Koichi SENDO
Filed: 20 Jan 21
Utility
Porous Ceramic Structure
30 Sep 21
When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of Co3O4, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of Co3O4.
Yunie IZUMI, Kennichi HIDAKA, Akihiro MIURA
Filed: 11 Jun 21
Utility
Inspection Method for Pillar-shaped Honeycomb Filter
30 Sep 21
Yoshihiro SATO, Takakazu KOYAMA, Yuji WATANABE, Yutaka ISHII, Takaaki KANEMITSU, Makoto MURAI, Masanari IWADE, Takafumi TERAHAI, Ryota KURAHASHI, Akinari FUKAYA, Kenji EBISUTANI
Filed: 25 Feb 21
Utility
Inspection Method and Inspection System for Pillar-shaped Honeycomb Structure
30 Sep 21
A method for inspecting a pillar-shaped honeycomb structure including the steps of: imaging a pattern of transmitted light from the second end face according to arrangement of the plugged portions of first cells and second cells, with a camera via a light diffusing film placed parallel to a second end face of the pillar-shaped honeycomb structure in a non-contact state with the second end face, which pattern is obtained by irradiating a first end face with light; and detecting a defective plugged portion(s) of the second cells based on an image of the pattern of transmitted light imaged with the camera.
Ryota KURAHASHI, Yoshihiro SATO, Takafumi TERAHAI
Filed: 21 Dec 20
Utility
Inspection Method and Inspection System for Cylindrical Honeycomb Structure Made of Ceramics
30 Sep 21
A inspection method for a cylindrical honeycomb structure including a step of placing a cylindrical honeycomb structure made of ceramics on a rotation stage; a step of irradiating the side surface of the cylindrical honeycomb structure with light having a wavelength of 300 to 500 nm; a step of repeatedly capturing a reflected light from the side surface with a line sensor camera having a pixel resolution of 1 to 25 μm/pix while the light is irradiated to the side surface and the cylindrical honeycomb structure is rotated around the axis of rotation, with a depth of field of the line sensor camera being adjusted to 0.5 to 5 mm; a step of generating an inspection image of the entire side surface; and a step of determining presence or absence of defects on the side surface based on the inspection image.
Takafumi TERAHAI, Yoshihiro SATO
Filed: 1 Mar 21