Patents by Inventor Kazuya Kawamura

Kazuya Kawamura 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).

  • Publication number: 20210087323
    Abstract: A polyurethane prepolymer produced by reacting a polyol and a polyisocyanate, wherein the polyol contains a polyether polyol (A) in an amount of 30% by mass or more, a polyester polyol (B) containing an isophthalic acid-derived structure and a sebacic acid-derived structure as partial structures derived from a dibasic acid in an amount of 30% by mass or more, and a polyester polyol (C) containing only a sebacic acid-derived structure as a partial structure derived from a dibasic acid in an amount of 20% by mass or less, the number-average molecular weight of the polyether polyol (A) is 1100 to 2400, and the ratio of the isocyanate equivalent of the polyisocyanate to the hydroxyl equivalent of the polyol is 2.1 or less.
    Type: Application
    Filed: May 14, 2019
    Publication date: March 25, 2021
    Applicant: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Ryo KAWAMURA, Kazuya SASAKI, Toshiki YAMADA
  • Patent number: 10804128
    Abstract: A transport space Si is formed in front of an article storage rack 1, and a plurality of up-down partition bodies that partition storage sections 1a adjacent to each other in an up-down direction are provided in the article storage rack 1. A flow path space S2 extending in the up-down direction is formed between a wall portion 43 and the plurality of storage sections 1a, and each of the plurality of storage sections 1a is located between the flow path space S2 and the transport space S1, and is in communication with the flow path space S2 and the transport space S1. A gas supply portion 51 includes a flow inlet 53 into which a gas from the outside flows, and is in communication with an upper end portion of the transport space S1 and an upper end portion of the flow path space S2.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: October 13, 2020
    Assignee: Daifuku Co., Ltd.
    Inventors: Takeshi Abe, Tadahiro Yoshimoto, Kazuya Omori, Shinsuke Kawamura
  • Publication number: 20200307312
    Abstract: A drive shaft is configured by joining solid stub shafts formed of a medium carbon steel to both ends of a hollow tubular body formed of a medium carbon steel. When expressed as grain size number, the grain size of the hollow tubular body at joint parts where the hollow tubular body and the solid stub shafts are joined together ranges from #5 to #9, and the grain size of the solid stub shafts at the joint parts ranges from #10 to #12.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Mitsuru Kamikawa, Naoto Shibata, Ko Sugai, Masafumi Yamamoto, Takafumi Murakami, Kazuya Kumei, Yutaka Takeuchi, Masaki Kawamura
  • Publication number: 20200141493
    Abstract: A seal structure between an oil outlet formed in a first case and an oil inlet formed in a second case and having an end face facing an end face of the oil outlet with a clearance between the end faces, the seal structure including an annular first seal disposed in an increased-diameter hole, which is formed on an outlet side or an inlet side of an oil passage in one of the oil outlet and the oil inlet and has a larger diameter than the oil passage, such that the first seal contacts a step surface located at a boundary between the oil passage and the increased-diameter hole; and an annular second seal harder than the first seal and disposed in the increased-diameter hole such that the second seal contacts the first seal and the end face of the other of the oil outlet and the oil inlet.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 7, 2020
    Applicants: AISIN AW CO., LTD., NOK CORPORATION
    Inventors: Daisuke AKAFUJI, Kazuya KAWAMURA, Toru ARAKI, Shinji ONISHI, Yuji OTSUKA
  • Patent number: 10385963
    Abstract: A power transfer device that includes a transmission, a drive pinion gear to which power from the transmission is transferred, a differential ring gear disposed below the drive pinion gear and meshed with the drive pinion gear, a differential gear coupled to the differential ring gear, and a cover that covers at least a part of the differential gear.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 20, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Takeshi Torii, Kazuya Kawamura, Tomoki Nishikubo, Shinya Yamamoto
  • Patent number: 10361109
    Abstract: A storage facility includes a storage rack including a plurality of storage sections and a gas supply portion that supplies an inactive gas to containers stored in the storage sections. Struts are installed at left and right ends of the storage rack and between adjacent ones of the storage sections, and placement portions are fixed to mutually adjacent ones of the struts. Each vertical pipe included in the gas supply portion is fixed to one of the struts to which the placement portion to which the inactive gas is supplied by the vertical pipe is fixed.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 23, 2019
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazuya Omori, Shinsuke Kawamura
  • Patent number: 10018265
    Abstract: A reservoir plate for dividing an inside of a transmission case into a differential chamber and a hydraulic oil storage chamber includes: a cylindrical portion covering a part of a differential gear; a flange portion radially extending from the cylindrical portion; and a differential ring surrounding portion extending from an outer circumferential edge of the flange portion so that a part of a differential ring gear is covered from above without interfering with a drive pinion gear. The cylindrical portion, the flange portion, and the differential ring surrounding portion are integrally formed with each other. A seal member is interposed between the transmission case and the outer circumferential edge of the flange portion at least in the range below the differential ring surrounding portion.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: July 10, 2018
    Assignee: AISIN AW CO., LTD.
    Inventors: Masashi Kito, Takeshi Torii, Kentaro Kakuda, Kazuya Kawamura, Tomoki Nishikubo, Shinya Yamamoto
  • Patent number: 9958056
    Abstract: A power transmission apparatus including a transmission, a case that accommodates the transmission, a counter drive gear to which power from the transmission is transmitted, and a counter driven gear that meshes with the counter drive gear, the power transmission apparatus including: a brake that fixes any rotational element of the transmission to the case so as not to be rotatable; and supporting member that is fixed to the case via a fastening member and that supports the counter drive gear so as to be rotatable, wherein the supporting member is integrally molded with a cylindrical drum portion that functions as a brake drum of the brake.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 1, 2018
    Assignee: AISIN AW CO., LTD.
    Inventors: Takeshi Torii, Kentaro Kakuda, Kazuya Kawamura, Hiroaki Sanji, Akihito Hattori
  • Publication number: 20160298756
    Abstract: A power transfer device that includes a transmission, a drive pinion gear to which power from the transmission is transferred, a differential ring gear disposed below the drive pinion gear and meshed with the drive pinion gear, a differential gear coupled to the differential ring gear, and a cover that covers at least a part of the differential gear.
    Type: Application
    Filed: December 17, 2014
    Publication date: October 13, 2016
    Applicant: AISIN AW CO., LTD.
    Inventors: Takeshi Torii, Kazuya Kawamura, Tomoki Nishikubo, Shinya Yamamoto
  • Publication number: 20160076636
    Abstract: A reservoir plate for dividing an inside of a transmission case into a differential chamber and a hydraulic oil storage chamber includes: a cylindrical portion covering a part of a differential gear; a flange portion radially extending from the cylindrical portion; and a differential ring surrounding portion extending from an outer circumferential edge of the flange portion so that a part of a differential ring gear is covered from above without interfering with a drive pinion gear. The cylindrical portion, the flange portion, and the differential ring surrounding portion are integrally formed with each other. A seal member is interposed between the transmission case and the outer circumferential edge of the flange portion at least in the range below the differential ring surrounding portion.
    Type: Application
    Filed: March 27, 2014
    Publication date: March 17, 2016
    Applicant: AISIN AW CO., LTD.
    Inventors: Masashi KITO, Takeshi TORII, Kentaro KAKUDA, Kazuya KAWAMURA, Tomoki NISHIKUBO, Shinya YAMAMOTO
  • Publication number: 20150362063
    Abstract: A power transmission apparatus including a transmission, a case that accommodates the transmission, a counter drive gear to which power from the transmission is transmitted, and a counter driven gear that meshes with the counter drive gear, the power transmission apparatus including: a brake that fixes any rotational element of the transmission to the case so as not to be rotatable; and supporting member that is fixed to the case via a fastening member and that supports the counter drive gear so as to be rotatable, wherein the supporting member is integrally molded with a cylindrical drum portion that functions as a brake drum of the brake.
    Type: Application
    Filed: March 20, 2014
    Publication date: December 17, 2015
    Applicant: AISIN AW CO., LTD.
    Inventors: Takeshi TORII, Kentaro KAKUDA, Kazuya KAWAMURA, Hiroaki SANJI, Akihito HATTORI
  • Publication number: 20150145953
    Abstract: An image completion system includes a first endoscope for obtaining an operating field image, a second endoscope for imaging the object space in a line-of-sight direction different from that of the first endoscope to obtain a completing image, a first device for measuring separating distances between a reference point and a large number of set points that are set in the object space, a second device for measuring three-dimensional positions of the endoscopes, and an image processing device for obtaining, image information on cutoff regions in the object space that are hidden on the depth sides of surgical instruments by imaging the surgical instruments in the operating field image together with the object space, and for replacing image information on the surgical instruments S in the operating field image with the obtained image information or superimposing the obtained image information onto the image information on the surgical instruments.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 28, 2015
    Applicants: WASEDA UNIVERSITY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Masakatsu Fujie, Yo Kobayashi, Kazuya Kawamura, Hiroto Seno, Yuya Nishio, Makoto Hashizume, Satoshi Ieiri, Kazutaka Toyoda
  • Patent number: 8821332
    Abstract: In a power transmission device, a breather chamber having an opening on its one end side and extending coaxially with the countershaft is formed in a countershaft that transmits power from an output shaft of an automatic transmission to a differential mechanism. An inner end of a vent pipe placed so as to extend through a transmission case and that includes the inner end and an outer end each having an opening is inserted in the opening of the breather chamber. A plug, which closes a gap between an inner peripheral surface of the breather chamber and an outer peripheral surface of the inner end of the vent pipe so as to allow air to flow between the inside of the transmission case and the breather chamber and so as to restrict entrance of hydraulic oil into the breather chamber, is placed in the opening of the breather chamber.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 2, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kazuya Kawamura, Takayoshi Kato, Toshihiko Aoki, Hiroshi Kato, Satoru Kasuya
  • Publication number: 20130316866
    Abstract: In a power transmission device, a breather chamber having an opening on its one end side and extending coaxially with the countershaft is formed in a countershaft that transmits power from an output shaft of an automatic transmission to a differential mechanism. An inner end of a vent pipe placed so as to extend through a transmission case and that includes the inner end and an outer end each having an opening is inserted in the opening of the breather chamber. A plug, which closes a gap between an inner peripheral surface of the breather chamber and an outer peripheral surface of the inner end of the vent pipe so as to allow air to flow between the inside of the transmission case and the breather chamber and so as to restrict entrance of hydraulic oil into the breather chamber, is placed in the opening of the breather chamber.
    Type: Application
    Filed: February 29, 2012
    Publication date: November 28, 2013
    Applicant: AISIN AW CO., LTD.
    Inventors: Kazuya Kawamura, Takayoshi Kato, Toshihiko Aoki, Hiroshi Kato, Satoru Kasuya
  • Publication number: 20080296745
    Abstract: A semiconductor device comprises a lead frame, an antenna formed at a predetermined position on the lead frame, and a semiconductor chip. The semiconductor chip is mounted on an island of the lead frame through a spacer.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 4, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Kazuya KAWAMURA
  • Publication number: 20060097808
    Abstract: A semiconductor device according to an embodiment of the present invention includes a semiconductor chip and a quartz oscillator. The semiconductor chip includes a first clock signal input terminal receiving a clock signal from the quartz oscillator, and a second clock signal input terminal receiving an externally generated clock signal. According to the device, it is possible to prevent simultaneous input of the clock signal from the quartz oscillator and the externally generated clock signal to the semiconductor chip.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 11, 2006
    Applicant: NEC Electronics Corporation
    Inventor: Kazuya Kawamura
  • Patent number: 6390838
    Abstract: A rotary connector includes a movable member housing consisting of a lead block 6 having a lock portion 6h, an upper rotor member 1 having an accommodating portion 1g accommodating the lead block and a plurality of engagement portions 1q, and a lower rotor member 2 inserted into the upper rotor member and having a plurality of holding portions 2f to be engaged with the lock portion and the engagement portions, and a stationary member housing supporting the movable member housing, wherein the lower rotor member is inserted into the upper rotor member in which the lead block is accommodated to cause the holding portions to be engaged with the lock portion and the engagement portions.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: May 21, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventor: Kazuya Kawamura
  • Patent number: 6224406
    Abstract: A rotating connector including a movable body having a lower holder with an outer extension portion which faces a widthwise direction end of a flexible cable. The flexible cable has a connecting end portion which extends beyond the outer extension portion and which is connected to a stationary side connecting portion of a first housing. For example, a cutout is formed in the flexible cable to prevent an edge of the connecting end portion of the flexible cable and the outer extension portion from contacting each other at a location where they cross each other. Using a simple structure, the rotating connector which makes it possible to reduce the level of sliding noise produced when sliding occurs between the flexible cable and the outer extension portion of the lower holder of the movable body.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: May 1, 2001
    Assignee: Alps Electric Co., Ltd.
    Inventors: Seishi Takahashi, Takashi Oguma, Kazuya Kawamura
  • Patent number: 6213798
    Abstract: A first groove and a second groove are formed deep in the top surface of a stationary housing; the second groove being extended by a given angle circumferentially from both ends of the first groove. A lock screw is threadedly installed to a screw receiving portion of the movable housing, and the movable housing is rotatably connected to the center of the stationary housing. In the housing space defined between the two housings, a flexible cable is wound and housed. The movable housing is positioned in the neutral position of rotation with respect to the stationary housing. This state is kept by engaging the tip of the lock screw with the first groove. To perform rotation tests of the movable housing, the lock screw is turned back up to the position in which the lock screw contacts both ends of the second groove, and the movable housing can be turned within a range of less than ±180 degrees from the neutral position of rotation.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: April 10, 2001
    Assignee: Alps Electric Co., Ltd.
    Inventors: Kazuya Kawamura, Nobuo Matsuzaki
  • Patent number: 4905729
    Abstract: The invention is a check valve including a valve housing defining a chamber, an inlet and an outlet; a spring holder retained in the chamber and defining a passage providing fluid communication between the chamber and the outlet, one end of the passage opening into the chamber and defining a stop surface; a valve body disposed in the chamber and movable between a closed position closing the inlet and an open position providing fluid communication between the chamber and the inlet, the valve body defining an abutment surface engaged by the stop surface upon movement of the body into the open position in response to a predetermined fluid pressure at the inlet, the abutment surface and the stop surface being shaped and arranged to provide when engaged fluid communication paths between the chamber and the passage opening; and a spring seated between the holder and the body and exerting a force tending to hold the body in the closed position.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: March 6, 1990
    Assignee: Diesel Kiki Co., Ltd.
    Inventor: Kazuya Kawamura