Patents by Inventor Tatsumi Yamada
Tatsumi Yamada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11970119Abstract: An attachment device for attaching an electronic device to a vehicle structure includes a base attached to the vehicle structure for supporting the electronic device, and a cover attached to the base by a first engagement portion and a second engagement portion. The first engagement portion includes an engagement concave formed in one of the base and the cover, and an engagement piece formed in the other of the base and the cover and inserting into the engagement concave. The engagement concave includes a first wall and a second wall facing each other in a first direction and opening toward a second direction perpendicular to the first direction. The engagement piece includes a first portion abutting against one of the first wall and the second wall, and a second portion extending from the first portion and abutting against the other of the first wall and the second wall.Type: GrantFiled: November 16, 2022Date of Patent: April 30, 2024Assignee: NIFCO INC.Inventor: Tatsumi Yamada
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Patent number: 11939515Abstract: The present disclosure provides a composition comprising a refrigerant (mixed refrigerant), the composition having three types of performance; i.e., a coefficient of performance (COP) and a refrigerating capacity (Cap) that are equivalent to or higher than those of R404A and/or R410A, and a sufficiently low GWP. The present disclosure specifically provides a composition comprising a refrigerant, the refrigerant comprising difluoromethane (HFC-32), 2,3,3,3-tetrafluoropropene (HFO-1234yf), and at least one of 1,1-difluoroethylene (HFO-1132a) and tetrafluoroethylene (FO-1114).Type: GrantFiled: July 8, 2019Date of Patent: March 26, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Mitsushi Itano, Shun Ohkubo, Hitomi Kuroki, Yasufu Yamada, Tatsumi Tsuchiya, Kenji Gobou
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Patent number: 11920077Abstract: No studies have been made regarding what kinds of refrigerants should be used in a refrigeration cycle device for a vehicle. An air conditioner (1) for a vehicle includes a refrigerant circuit (10) and a refrigerant that is sealed in the refrigerant circuit (10). The refrigerant circuit (10) includes a compressor (80), a first heat exchanger (85), which serves as a heat dissipater in a dehumidifying heating mode, an outside-air heat exchanger (82), a cooling control valve (87), and a second heat exchanger (86), which serves as an evaporator in the dehumidifying heating mode. The refrigerant is a refrigerant having a low GWP.Type: GrantFiled: July 16, 2019Date of Patent: March 5, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Eiji Kumakura, Kazuhiro Furusho, Masaru Tanaka, Shun Ohkubo, Mitsushi Itano, Yuuki Yotsumoto, Akihito Mizuno, Tomoyuki Gotou, Yasufu Yamada, Tatsumi Tsuchiya, Kenji Gobou, Hitomi Kuroki, Daisuke Karube, Tatsuya Takakuwa, Tetsushi Tsuda
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Patent number: 11912922Abstract: A showcase includes a refrigerant circuit and a refrigerant enclosed in the refrigerant circuit. The refrigerant circuit includes a compressor (121), a radiator (122), an expansion valve (123), and an evaporator (124). The refrigerant is a low-GWP refrigerant.Type: GrantFiled: July 16, 2019Date of Patent: February 27, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Shinichi Fujinaka, Masaru Tanaka, Shun Ohkubo, Mitsushi Itano, Yuuki Yotsumoto, Akihito Mizuno, Tomoyuki Gotou, Yasufu Yamada, Hitomi Kuroki, Tatsumi Tsuchiya, Kenji Gobou, Daisuke Karube, Tatsuya Takakuwa
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Publication number: 20230173997Abstract: An attachment device for attaching an electronic device to a vehicle structure includes a base attached to the vehicle structure for supporting the electronic device, and a cover attached to the base by a first engagement portion and a second engagement portion. The first engagement portion includes an engagement concave formed in one of the base and the cover, and an engagement piece formed in the other of the base and the cover and inserting into the engagement concave. The engagement concave includes a first wall and a second wall facing each other in a first direction and opening toward a second direction perpendicular to the first direction. The engagement piece includes a first portion abutting against one of the first wall and the second wall, and a second portion extending from the first portion and abutting against the other of the first wall and the second wall.Type: ApplicationFiled: November 16, 2022Publication date: June 8, 2023Inventor: Tatsumi YAMADA
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Publication number: 20220395771Abstract: A filter holding device includes an opening portion and a filter. The opening portion communicates between an inside and an outside of the filter holding device. The filter is disposed in the opening portion and includes a first side and a second side. The first side is located adjacent to the inside of the filter holding device. The second side is located adjacent to the outside of the filter holding device. The filter has a larger weight density per unit volume at the second side than a weight density per unit volume at the first side and has a larger area of a surface intersecting a communication direction at the second side than an area of a surface intersecting the communication direction at the first side.Type: ApplicationFiled: June 2, 2022Publication date: December 15, 2022Inventors: Shohtaroh HOSHI, Kazuki YOGOSAWA, Tatsuya KUBO, Yuta YABUTA, Hotaru HASHIKAWA, Takuya SUGANUMA, Takuya SEKINE, Tatsumi YAMADA
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Publication number: 20220121138Abstract: A filter includes a sticker and a filter body. The filter body has a smaller weight density per unit volume at a first side than at a second side opposite the first side. The sticker is disposed around a surface of the second side of the filter body.Type: ApplicationFiled: October 11, 2021Publication date: April 21, 2022Inventors: Tatsumi YAMADA, Takuya SUGANUMA, Takuya SEKINE, Shotaro HOSHI, Kazuki YOGOSAWA, Yuta YABUTA, Tatsuya KUBO, Hotaru HASHIKAWA
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Patent number: 10690187Abstract: An enveloping layer-coated slide bearing includes a slide bearing having a bearing surface formed in a cylindrical shape, and a first enveloping layer composed of a thermoplastic elastomer formed on and directly contacting an outer circumferential surface of the slide bearing. In another arrangement, a second enveloping layer is interposed between the first enveloping layer and the slide bearing and directly contacts the outer circumferential surface of the slide bearing.Type: GrantFiled: April 13, 2018Date of Patent: June 23, 2020Assignee: SEIKO INSTRUMENTS INC.Inventors: Akihiro Iino, Tatsumi Yamada
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Patent number: 10655676Abstract: An enveloping layer-coated slide bearing includes a slide bearing having a bearing surface formed in a cylindrical shape, and a first enveloping layer composed of a thermoplastic elastomer formed on and directly contacting an outer circumferential surface of the slide bearing. In another arrangement, a second enveloping layer is interposed between the first enveloping layer and the slide bearing and directly contacts the outer circumferential surface of the slide bearing.Type: GrantFiled: April 13, 2018Date of Patent: May 19, 2020Assignee: SEIKO INSTRUMENTS INC.Inventors: Akihiro Iino, Tatsumi Yamada
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Patent number: 10598223Abstract: A method of manufacturing an enveloping layer-coated slide bearing includes preparing a slide bearing formed of polycarbonate, ABS resin, or an alloy material of the polycarbonate and the ABS resin; and forming an enveloping layer by injection molding a thermoplastic elastomer on an outer circumferential surface of the slide bearing. In an alternate method, an inner enveloping layer is formed directly on the outer circumferential outer surface of the slide bearing beneath the thermoplastic elastomeric enveloping layer.Type: GrantFiled: May 8, 2019Date of Patent: March 24, 2020Assignee: SEIKO INSTRUMENTS INC.Inventors: Akihiro Iino, Tatsumi Yamada
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Patent number: 10550893Abstract: Provided is a bearing having a plurality of rolling elements disposed between an inner ring and an outer ring that are disposed coaxially, wherein a groove section extending in a circumferential direction of an outer circumferential surface of the outer ring outside in a radial direction is formed on the outer circumferential surface, and an enveloping layer formed of any one of rubber, a thermoplastic elastomer and a plastic is formed on the outer circumferential surface.Type: GrantFiled: April 13, 2018Date of Patent: February 4, 2020Assignee: SEIKO INSTRUMENTS INC.Inventors: Akihiro Iino, Tatsumi Yamada, Noritoshi Yuura, Haruhiko Hasegawa
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Patent number: 10520029Abstract: A structure includes an enveloping layer formed on one of a circular outer surface or a flat outer surface having irregularities, wherein the enveloping layer includes an outer circumferential surface layer formed by thermally fusing a thermoplastic elastomer. The enveloping layer has a first material layer provided on one of the outer surfaces and formed from an amorphos plastic, and a second material layer provided on the first material layer and formed from a thermoplastic elastomer selected from the group consisting of styrenes, olefins, polyvinyl chlorides, urethanes and polyesters.Type: GrantFiled: April 13, 2018Date of Patent: December 31, 2019Assignee: SEIKO INSTRUMENTS INC.Inventors: Akihiro Iino, Yukihiro Nakayama, Hironobu Itoh, Tatsumi Yamada, Noritoshi Yuura, Haruhiko Hasegawa
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Publication number: 20190264742Abstract: An enveloping layer-coated slide bearing includes a slide bearing having a bearing surface formed in a cylindrical shape, and a first enveloping layer formed of a thermoplastic elastomer on an outer circumferential surface of the slide bearing.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Inventors: Akihiro IINO, Tatsumi YAMADA
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Publication number: 20180306240Abstract: An enveloping layer-coated slide bearing includes a slide bearing having a bearing surface formed in a cylindrical shape, and a first enveloping layer formed of a thermoplastic elastomer on an outer circumferential surface of the slide bearing.Type: ApplicationFiled: April 13, 2018Publication date: October 25, 2018Inventors: Akihiro IINO, Tatsumi YAMADA
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Publication number: 20180306243Abstract: Provided is a bearing having a plurality of rolling elements disposed between an inner ring and an outer ring that are disposed coaxially, wherein a groove section extending in a circumferential direction of an outer circumferential surface of the outer ring outside in a radial direction is formed on the outer circumferential surface, and an enveloping layer formed of any one of rubber, a thermoplastic elastomer and a plastic is formed on the outer circumferential surface.Type: ApplicationFiled: April 13, 2018Publication date: October 25, 2018Inventors: Akihiro IINO, Tatsumi YAMADA, Noritoshi YUURA, Haruhiko HASEGAWA
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Publication number: 20180306242Abstract: The present invention provides a structure including an enveloping layer formed on one of a circular outer surface and/or a flat outer surface having irregularities, wherein the enveloping layer includes an outer circumferential surface layer formed by thermally fusing a thermoplastic elastomer.Type: ApplicationFiled: April 13, 2018Publication date: October 25, 2018Inventors: Akihiro IINO, Yukihiro NAKAYAMA, Hironobu ITOH, Tatsumi YAMADA, Noritoshi YUURA, Haruhiko HASEGAWA
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Patent number: 9778608Abstract: A control device for an image forming apparatus that transitions to a restricted mode which is a print mode to alternately transition between a printable state to perform a print operation, in which a predetermined print amount is printable, and a sleep state to stop a subsequent print operation for a predetermined sleep time after the print operation is performed, includes a print-operation determiner and a print controller. The print-operation determiner determines, when a print-operation execution request to the image forming apparatus is received in the sleep state, whether the image forming apparatus is to perform the subsequent print operation based on a print amount of the print-operation execution request. The print controller controls the subsequent print operation of the image forming apparatus according to a determination result of the print-operation determiner as to whether the image forming apparatus is to perform the subsequent print operation.Type: GrantFiled: May 18, 2016Date of Patent: October 3, 2017Assignee: RICOH COMPANY, LTD.Inventors: Kazuya Saitoh, Takeshi Kojima, Sho Sekiguchi, Tatsumi Yamada, Takuya Moriyama
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Publication number: 20160342120Abstract: A control device for an image forming apparatus that transitions to a restricted mode which is a print mode to alternately transition between a printable state to perform a print operation, in which a predetermined print amount is printable, and a sleep state to stop a subsequent print operation for a predetermined sleep time after the print operation is performed, includes a print-operation determiner and a print controller. The print-operation determiner determines, when a print-operation execution request to the image forming apparatus is received in the sleep state, whether the image forming apparatus is to perform the subsequent print operation based on a print amount of the print-operation execution request. The print controller controls the subsequent print operation of the image forming apparatus according to a determination result of the print-operation determiner as to whether the image forming apparatus is to perform the subsequent print operation.Type: ApplicationFiled: May 18, 2016Publication date: November 24, 2016Applicant: Ricoh Company, Ltd.Inventors: Kazuya SAITOH, Takeshi KOJIMA, Sho SEKIGUCHI, Tatsumi YAMADA, Takuya MORIYAMA
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Patent number: 9354588Abstract: An image forming apparatus includes an image bearer rotating in a first direction while bearing a toner image thereon in a normal image forming operation; a toner image forming device to form the toner image on the image bearer; a transferring device to transfer the toner image to a recording medium eventually; a cleaning blade to block toner remaining on image bearer without being transferred; and a controller. The controller controls the image bearer to perform an inverse rotation operation in which the image bearer rotates in a second direction opposite to the first direction after controlling the toner image forming device to perform a special image forming operation such that the amount of toner input to the cleaning blade in the special image forming operation is greater than the amount of toner input to the cleaning blade in the normal image forming operation, and then stopping the image bearer.Type: GrantFiled: May 15, 2015Date of Patent: May 31, 2016Assignee: Ricoh Company, Ltd.Inventors: Tomoko Takahashi, Taichi Urayama, Yasunobu Takagi, Hiroyuki Sugiyama, Masahiko Shakuto, Yoshinori Nakagawa, Shotaro Hoshi, Ryota Kidera, Tatsumi Yamada
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Patent number: 9310714Abstract: An image forming apparatus includes a driving device, a transfer body, a toner detector, an error notification device, and a controller. The toner detector detects, at a preparation running and while the driving device drives a latent image bearer, one of a toner adhesion amount at a background portion of the latent image bearer and a toner adhesion amount at a background corresponding region of a transfer body. The error notification device notifies a user of an error with the toner adhesion being equal to or greater than a predetermined threshold value. The driving device stops only a developer bearer after driving both the latent image bearer and the developer bearer at the preparation running, but before a trailing edge of a detection target region of one of the background portion of the latent image bearer and the background corresponding region advances to an opposite position to the toner detector.Type: GrantFiled: June 17, 2015Date of Patent: April 12, 2016Assignee: Ricoh Company, Ltd.Inventors: Naoyuki Ozaki, Ryota Kidera, Hiroyuki Sugiyama, Ryusuke Mase, Tatsumi Yamada, Tomoko Takahashi, Masahiko Shakuto, Yasunobu Takagi