188 patents
Utility
Method for producing gear, gear, and bending meshing type gear device
19 Dec 23
Provided is a method for producing a gear including an intermediate product forming process of solidifying a fluid material to form a gear intermediate product, and a tooth forming process of cutting the gear intermediate product to form teeth.
Mitsuhiro Tamura, Akira Yamamoto
Filed: 17 May 21
Utility
Metal pipe forming method, metal pipe, and forming system
19 Dec 23
A metal pipe forming method includes: disposing a metal pipe material having a hollow shape between a pair of dies; and forming a metal pipe including a pipe portion and a flange portion by expanding the metal pipe material by supplying a fluid and bringing the metal pipe material into contact with the pair of dies.
Masayuki Saika, Masayuki Ishizuka, Norieda Ueno, Kimihiro Nogiwa, Akihiro Ide
Filed: 22 Jul 21
Utility
Cryocooler and control method of cryocooler
19 Dec 23
A cryocooler includes a compressor, an expander that includes a motor and is driven by the motor, an inverter that controls an operation frequency of the motor, a high pressure line that connects the compressor to the expander such that a working gas is supplied from the compressor to the expander, a low pressure line that connects the compressor to the expander such that a working gas is collected from the expander to the compressor, a pressure measurement unit that is configured to measure pressures of the high pressure line and the low pressure line or to measure a differential pressure between the high pressure line and the low pressure line, and a controller that compares the differential pressure to a target pressure and controls the inverter such that the operation frequency of the motor is increased when the differential pressure exceeds the target pressure.
Changheng Liu
Filed: 27 Sep 21
Utility
Compressive torsion forming device
28 Nov 23
A compressive torsion forming device for processing a processing material using a first die and a second die facing each other includes a sliding portion that includes a first hydraulic chamber, and slides in accordance with a change in internal pressure of the first hydraulic chamber so as to move the first die in a direction of an axis; a rotating table provided with the second die and rotatable about the axis; a table support portion provided opposite to the second die with the rotating table interposed therebetween in the direction of the axis; and a rotational bearing that rotatably supports the rotating table with respect to the table support portion, and receives a force acting on the rotating table in a direction from the second die toward the rotating table.
Kei Yamauchi, Shinya Ishigai
Filed: 22 Oct 20
Utility
Cryopump
28 Nov 23
A cryopump includes: a cryocooler which includes a high-temperature cooling stage and a low-temperature cooling stage; a radiation shield which surrounds the low-temperature cooling stage, extends in an axial direction, and is thermally coupled to the high-temperature cooling stage; a plurality of adsorption cryopanels which are disposed between a cryopump intake port and the low-temperature cooling stage in the axial direction and are thermally coupled to the low-temperature cooling stage; and a condensation cryopanel which is disposed between the radiation shield and the plurality of adsorption cryopanels in a radial direction, is thermally coupled to the low-temperature cooling stage, and has a tubular shape extending in the axial direction and being open at both ends.
Shuhei Gotanda
Filed: 2 Sep 20
Utility
Shovel
21 Nov 23
A shovel includes an attachment attached to an upper turning body and a processor configured to calculate a weight of a load carried in the attachment in accordance with a mode selected from a plurality of modes with respect to timing of detection.
Yusuke Sano
Filed: 20 Aug 20
Utility
Friction transmission device
21 Nov 23
A friction transmission device has a friction transmission mechanism that transmits power by contact between a take-out member from which output rotation is taken out and a plurality of friction rolling elements.
Toshiya Nagumo
Filed: 28 Oct 22
Utility
Cryogenic device and cryostat
7 Nov 23
A cryogenic device includes: a hermetic container; a cryocooler including a mounting portion mounted on the container, a connecting part extending from the mounting portion into the container in an axial direction of the cryocooler, and a cooling stage attached to the connecting part and disposed in the container; and a member to be cooled that is disposed in the container with a gap, which is configured to allow heat to be exchanged, between the cooling stage and the member.
Mingyao Xu
Filed: 19 Nov 21
Utility
Shovel, and management apparatus and assist device for shovel
17 Oct 23
A shovel includes a lower traveling body, an upper turning body mounted on the lower traveling body, an attachment attached to the upper turning body, and a control device mounted on the upper turning body and configured to assist an excavating motion with the attachment.
Yusuke Sano, Chunnan Wu
Filed: 19 Sep 19
Utility
Liquid target device
10 Oct 23
A liquid target device includes a liquid accommodation portion in which a target liquid is accommodated, a beam passage through which a charged particle beam emitted from a particle accelerator passes to reach the liquid accommodation portion, a target foil that separates the beam passage and the liquid accommodation portion from each other, and a vacuum foil that separates a vacuum region provided upstream of the beam passage and the beam passage from each other.
Hiroyuki Uno, Shigeharu Ochi, Francisco Guerra Gomez
Filed: 19 Mar 20
Utility
Forming device
10 Oct 23
A forming device includes a blow-forming die and a shielding member.
Masayuki Saika, Masayuki Ishizuka, Norieda Ueno
Filed: 14 Dec 20
Utility
Cryocooler
3 Oct 23
There is provided a cryocooler including a cylinder, a displacer disposed inside the cylinder and driven to reciprocate by a gas pressure, a collar rigidly connected to the displacer to reciprocate together with the displacer, a collar chamber divided into an upper section and a lower section by the collar, a second seal portion provided between the displacer and the cylinder to seal the lower section, a lower bumper provided in the lower section to mitigate interference between the displacer and the cylinder when the displacer is located at a bottom dead center, and a communication passage formed in the collar or in the collar chamber to ensure communication between the upper section and the lower section when the displacer is located at a bottom dead center.
Mingyao Xu, Qian Bao
Filed: 26 Feb 21
Utility
Forming system
3 Oct 23
Provided is a forming system that expands a heated metal pipe material to form a metal pipe.
Kei Yamauchi
Filed: 2 Aug 21
Utility
Fluid actuator, fluid actuator control method, and computer readable medium storing control program of fluid actuator
19 Sep 23
Provided is a fluid actuator capable of safely driving a drive target.
Marino Watanabe, Akira Kondo, Shinya Hamada
Filed: 12 Jan 22
Utility
Cryocooler, and diagnosis device and diagnosis method of cryocooler
19 Sep 23
A cryocooler includes a motion conversion mechanism that converts rotating motion output by a motor into linear reciprocating motion of a displacer and includes a first component and a second component slidably connected to each other, a measuring instrument that is connected to the motor to output time-series data indicating power consumption of the motor or a current flowing through the motor, and a processing unit that detects abrasion of a sliding surface between a first component and a second component of the motion conversion mechanism on the basis of section data including an intake start timing or an exhaust start timing in the time-series data.
Takaaki Morie
Filed: 14 Apr 22
Utility
Expansion forming apparatus
12 Sep 23
An expansion forming apparatus that shapes a metal material with a die includes an electrode that comes into contact with the metal material and performs energization heating, and an electrode mounting unit having an electrode movement actuator that moves the electrode along an extension direction of the metal material during heating.
Kei Yamauchi, Eiji Kouyama, Kiyomasa Koukami
Filed: 12 Feb 21
Utility
Gear motor and cooperating robot
12 Sep 23
A gear motor includes a motor and a speed reducer and drives a joint portion of a cooperating robot which performs a work in collaboration with a person.
Koji Moritani, Akira Yamamoto
Filed: 26 Nov 18
Utility
Cryocooler and sealing component
12 Sep 23
There is provided a cryocooler including a displacer, a displacer drive mechanism, a connecting rod that connects the displacer drive mechanism to the displacer, and a sealing component that supports the connecting rod to allow axial reciprocation thereof.
Shuntaro Adachi
Filed: 10 Feb 21
Utility
Bending meshing type gear device and method of manufacturing bending meshing type gear device
5 Sep 23
A bending meshing type gear device includes a wave generator, an external gear that is bent and deformed by the wave generator, an internal gear that meshes with the external gear, and a wave generator bearing disposed between the wave generator and the external gear, in which an inner ring rolling surface on which a rolling element of the wave generator bearing rolls includes a hardened layer, and the hardened layer has a characteristic that a surface hardness after operating for a predetermined time is increased compared to a surface hardness before operation.
Masayuki Ishizuka, Hideo Fukumura, Takashi Maruyama
Filed: 30 Jul 21
Utility
Reduction gear
5 Sep 23
A reduction gear includes a reduction mechanism and a component which constitutes the reduction gear and in which a cavity portion is provided.
Masayuki Ishizuka, Mitsuhiro Tamura
Filed: 23 May 22