Patents by Inventor Toshihiko Shima

Toshihiko Shima 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: 20210033210
    Abstract: An electromagnetic valve includes a sleeve having a valve hole at a central portion thereof, a spool, and an electromagnetic solenoid. The sleeve has plural ports penetrating the sleeve between inner and outer peripheral surfaces thereof and disposed side by side in a central axis direction of the valve hole. In the spool, plural lands having an outer peripheral surface facing an inner peripheral surface of the valve hole are provided side by side in the central axis direction. The electromagnetic solenoid is configured to move the spool in the central axis direction in the valve hole. The ports have one or plural recessed portions in which working oil is stored. When the spool is decentered with respect to the sleeve, a pressure of the working oil stored is increased.
    Type: Application
    Filed: July 27, 2020
    Publication date: February 4, 2021
    Applicant: JTEKT CORPORATION
    Inventors: Kaori FUJITA, Toshihiko Shima, Teppei Morita, Toshio Murakami, Shungo Kamigaichi, Tomohiro Shiromaru
  • Publication number: 20190323626
    Abstract: A valve device includes a body, a joint, a check valve, a valve seat fixation member having an outer peripheral surface on which an external thread is provided, and a sealing member. The body has an attachment hole that attaches the joint and the valve seat fixation member from an outside of the body in a sequence of the joint and the valve seat fixation member, and that has an inner peripheral surface in which an internal thread screwed to the external thread of the valve seat fixation member is provided. The sealing member is provided between the joint and the valve seat fixation member. An outer peripheral edge of the sealing member is located radially inward of a screwed region of the internal thread and the external thread.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Takuya SUZUKI, Kazuki OKAMURA, Takashi YAMAZAKI, Toshihiko SHIMA, Kazushi NUMAZAKI, Naohiro SAKAMOTO, Akio NAKAMURA, Koji KIDA
  • Patent number: 9810327
    Abstract: A valve element of a pressure reducing valve includes a taper portion seated on an inner periphery of a valve hole that includes a first area, a second area and a third area in order from an upstream side. The first area is provided such that, when the valve element is open, the height of a passage defined between the first area and the taper portion gradually reduces toward a downstream side. The second area is provided such that the height of a passage defined between the second area and the taper portion is constant when the valve element is open and the entire second area contacts the taper portion when the valve element is closed. The third area is provided such that, when the valve element is open, the height of a passage defined between the third area and the taper portion gradually increases toward the downstream side.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: November 7, 2017
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshihiko Shima, Takashi Iwaguchi, Hidetoshi Fujiwara, Munetoshi Kuroyanagi, Toshikatsu Kubo, Eiji Okawachi, Masaaki Kondo, Akira Yamashita, Hidetsugu Hayashi
  • Patent number: 9670879
    Abstract: A valve apparatus includes a body with a supply passage for gas and a solenoid valve housed in the body. The solenoid valve includes a tubular sleeve internally having a flow passage leading to the supply passage, and a valve element and a valve seat that open and close the flow passage. The solenoid valve includes a driving portion that opens and closes the valve element. A seal member is disposed between an outer wall of the sleeve and an inner wall of the body. A tip of the sleeve on a downstream side of the valve element is exposed from the body.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 6, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Akira Nakano, Toshihiko Shima, Akio Nakamura, Yoshiyuki Takeuchi, Tomoya Noda, Mutsuo Henmi
  • Patent number: 9568114
    Abstract: The valve unit includes: a body having a charging passage; a supply-side joint that connects a supply pipe; and a check valve that is disposed in the gas passage, and that inhibits gas from being discharged from the gas tank to the outside of the body. The check valve includes a check valve seat, a check valve element that comes into contact with or moves away from the check valve seat, and a positioning member that fixes the position of the check valve seat in the charging passage. The body has a fitting hole which is communicated with the charging passage and in which the supply-side joint and the positioning member are fitted. The positioning member is fitted in a second fitting hole so as to fix the position of the check valve seat even when the supply-side joint has not been fitted in a first fitting hole.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: February 14, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Toshihiko Shima, Akio Nakamura, Kenji Takahashi, Shusuke Inagi, Kentaro Hioki
  • Patent number: 9400506
    Abstract: A pressure reducer includes a piston slidably accommodated in a cylinder to define a decompression chamber and a pressure adjusting chamber. A seal member includes an elastic member and a sliding portion. The sliding portion is pressed by the elastic member such that the sliding portion slides on an inner circumferential surface of the cylinder. An annular member is located on an outer circumferential surface of the piston and between the seal member and the pressure adjusting surface. The annular member is pressed against the inner circumferential surface of the cylinder with a force that is less than a force with which the sliding portion is pressed against the inner circumferential surface of the cylinder. Thus, the pressure reducer prevents the piston from being moved by an excessive amount with highly accurately adjusting pressure.
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: July 26, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshihiko Shima, Hidetoshi Fujiwara, Munetoshi Kuroyanagi, Takuya Suzuki, Tsukuo Ishitoya, Akira Yamashita
  • Publication number: 20160118676
    Abstract: A valve element of a pressure reducing valve includes a taper portion seated on an inner periphery of a valve hole that includes a first area, a second area and a third area in order from an upstream side. The first area is provided such that, when the valve element is open, the height of a passage defined between the first area and the taper portion gradually reduces toward a downstream side. The second area is provided such that the height of a passage defined between the second area and the taper portion is constant when the valve element is open and the entire second area contacts the taper portion when the valve element is closed. The third area is provided such that, when the valve element is open, the height of a passage defined between the third area and the taper portion gradually increases toward the downstream side.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 28, 2016
    Inventors: Toshihiko SHIMA, Takashi IWAGUCHI, Hidetoshi FUJIWARA, Munetoshi KUROYANAGI, Toshikatsu KUBO, Eiji OKAWACHI, Masaaki KONDO, Akira YAMASHITA, Hidetsugu HAYASHI
  • Publication number: 20150300295
    Abstract: A valve apparatus includes a body with a supply passage for gas and a solenoid valve housed in the body. The solenoid valve includes a tubular sleeve internally having a flow passage leading to the supply passage, and a valve element and a valve seat that open and close the flow passage. The solenoid valve includes a driving portion that opens and closes the valve element. A seal member is disposed between an outer wall of the sleeve and an inner wall of the body. A tip of the sleeve on a downstream side of the valve element is exposed from the body.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 22, 2015
    Inventors: Akira NAKANO, Toshihiko SHIMA, Akio NAKAMURA, Yoshiyuki TAKEUCHI, Tomoya NODA, Mutsuo HENMI
  • Publication number: 20150034195
    Abstract: The valve unit includes: a body having a charging passage; a supply-side joint that connects a supply pipe; and a check valve that is disposed in the gas passage, and that inhibits gas from being discharged from the gas tank to the outside of the body. The check valve includes a check valve seat, a check valve element that comes into contact with or moves away from the check valve seat, and a positioning member that fixes the position of the check valve seat in the charging passage. The body has a fitting hole which is communicated with the charging passage and in which the supply-side joint and the positioning member are fitted. The positioning member is fitted in a second fitting hole so as to fix the position of the check valve seat even when the supply-side joint has not been fitted in a first fitting hole.
    Type: Application
    Filed: July 18, 2014
    Publication date: February 5, 2015
    Inventors: Toshihiko SHIMA, Akio NAKAMURA, Kenji TAKAHASHI, Shusuke INAGI, Kentaro HIOKI
  • Patent number: 8716728
    Abstract: A nitride semiconductor light-emitting diode element 1 includes a nitride semiconductor layer 12 having a bottom surface and an upper surface and containing a light emitting layer 12b inside, and a supporting substrate 11 made from a metal is bonded to the bottom surface of the nitride semiconductor layer 12. A light reflecting depression A1 to reflect light generated in the light emitting layer 12b is formed in the bottom surface of the nitride semiconductor layer 12. According to the nitride semiconductor light-emitting diode element 1, since the light generated from the light emitting layer 12b and propagated in the nitride semiconductor layer 12 in a layer direction is reflected by the light reflecting depression A1 and its travel direction is changed, the ratio of the light incident upon the upper surface of the nitride semiconductor layer 12 within a critical angle is increased.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: May 6, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiromitsu Kudo, Hirokazu Taniguchi, Hiroaki Okagawa, Shin Hiraoka, Takahide Joichi, Toshihiko Shima
  • Patent number: 8474792
    Abstract: In a valve device for selectively opening and closing a flow passage formed to open on a valve seat by a valve body through a resin-made seat, a hollow portion is formed on either one of the valve body and the valve seat and receives the resin-made seat therein, the resin-made seat has a thickness so that the resin-made seat partly protrudes from the hollow portion, and when the valve body is operated to close the flow passage, the resin-made seat is compressed to bring an end surface of the valve body into contact with the valve seat.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: July 2, 2013
    Assignee: JTEKT Corporation
    Inventors: Toshikatsu Kubo, Toshihiko Shima, Takuya Suzuki, Munetoshi Kuroyanagi
  • Patent number: 8455886
    Abstract: A light emitting device is constituted by flip-chip mounting a GaN-based LED chip. The GaN-based LED chip includes a light-transmissive substrate and a GaN-based semiconductor layer formed on the light-transmissive substrate, wherein the GaN-based semiconductor layer has a laminate structure containing an n-type layer, a light emitting layer and a p-type layer in this order from the light-transmissive substrate side, wherein a positive electrode is formed on the p-type layer, the electrode containing a light-transmissive electrode of an oxide semiconductor and a positive contact electrode electrically connected to the light-transmissive electrode, and the area of the positive contact electrode is half or less of the area of the upper surface of the p-type layer.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: June 4, 2013
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takahide Joichi, Hiroaki Okagawa, Shin Hiraoka, Toshihiko Shima, Hirokazu Taniguchi
  • Patent number: 8408243
    Abstract: A valve device includes: a valve member that controls flow of a fluid, and a body that has a valve insertion hole in which the valve member is inserted, and whose inner surface is cylindrically formed, and into which the fluid flows, and a lead-in passage that has an opening in the inner surface of the valve insertion hole, and that causes the fluid to flow into the valve insertion hole. A line representing the direction of extension of the lead-in passage is tilted from a line normal to the inner surface of the valve insertion hole at a position of the opening of the lead-in passage, in a view in the axis direction of the valve insertion hole.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: April 2, 2013
    Assignee: JTEKT Corporation
    Inventors: Hiroaki Suzuki, Takuya Suzuki, Munetoshi Kuroyanagi, Toshihiko Shima
  • Publication number: 20120175669
    Abstract: A light emitting device is constituted by flip-chip mounting a GaN-based LED chip. The GaN-based LED chip includes a light-transmissive substrate and a GaN-based semiconductor layer formed on the light-transmissive substrate, wherein the GaN-based semiconductor layer has a laminate structure containing an n-type layer, a light emitting layer and a p-type layer in this order from the light-transmissive substrate side, wherein a positive electrode is formed on the p-type layer, the electrode containing a light-transmissive electrode of an oxide semiconductor and a positive contact electrode electrically connected to the light-transmissive electrode, and the area of the positive contact electrode is half or less of the area of the upper surface of the p-type layer.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 12, 2012
    Inventors: Takahide Joichi, Hiroaki Okagawa, Shin Hiraoka, Toshihiko Shima, Hirokazu Taniguchi
  • Patent number: 8158990
    Abstract: A light emitting device is constituted by flip-chip mounting a GaN-based LED chip. The GaN-based LED chip includes a light-transmissive substrate and a GaN-based semiconductor layer formed on the light-transmissive substrate, wherein the GaN-based semiconductor layer has a laminate structure containing an n-type layer, a light emitting layer and a p-type layer in this order from the light-transmissive substrate side, wherein a positive electrode is formed on the p-type layer, the electrode containing a light-transmissive electrode of an oxide semiconductor and a positive contact electrode electrically connected to the light-transmissive electrode, and the area of the positive contact electrode is half or less of the area of the upper surface of the p-type layer.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: April 17, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takahide Joichi, Hiroaki Okagawa, Shin Hiraoka, Toshihiko Shima, Hirokazu Taniguchi
  • Patent number: 8151819
    Abstract: A fluid supply valve attachment device that has a tank, a fixing member in which a recessed fitting section is formed, a fluid supply valve that is inserted in and fixed to the recessed fitting section, a first seal member which seals a space between the tank and the fixing member, and a second seal member which seals a space between the fixing member and the fluid supply valve. The maximum inside diameter of the recessed fitting section is defined as D, a distance between a cross-sectional center of the first seal member and a cross-sectional center of the second seal member in a direction that a central axial line of the recessed fitting section extends in an attached state is defined as L1, and L1 is set within 2.5√óD.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 10, 2012
    Assignee: JTEKT Corporation
    Inventors: Hiroaki Suzuki, Munetoshi Kuroyanagi, Takuya Suzuki, Kazushi Numazaki, Toshikatsu Kubo, Toshihiko Shima
  • Patent number: 8104508
    Abstract: A plug body housing 16 has a receiving recess 17, and the receiving recess 17 includes a first recess 21 opening toward the outside and a second recess 22 connected to the first recess 21. Check valves 8 and 9 are provided in the second recess 22, and a manual valve 14 is provided in the first recess 21. An internal threaded portion 45 is formed in an inner circumferential surface of the first recess 21, and a housing 35 of the manual valve 14 is threaded into the internal threaded portion 45. The check valves 8 and 9 are held between a bottom surface 22a of the second recess 22 and a bottom 35a of the housing 35 so that the check valves 8 and 9 are secured in the second recess 22.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: January 31, 2012
    Assignees: JTEKT Corporation, Toyooki Kogyo Co., Ltd.
    Inventors: Takuya Suzuki, Hidetoshi Fujiwara, Toshihiko Shima, Munetoshi Kuroyanagi, Tadayoshi Kamiya, Soichi Shirai, Nobuyuki Shirai
  • Publication number: 20110260196
    Abstract: Provided is a GaN-based LED element having a novel structure for improving output by increasing light extraction efficiency.
    Type: Application
    Filed: June 30, 2011
    Publication date: October 27, 2011
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroaki OKAGAWA, Shin Hiraoka, Takahide Jouichi, Toshihiko Shima
  • Patent number: 8028716
    Abstract: An annular mating portion extends from a fastening surface of a fastening nut. The mating portion has an inner diameter set to be substantially equal to an outer diameter of the portion of a piston in which an accommodating groove is formed. In a state in which the mating portion is inserted into the accommodating groove, and an inner circumferential surface of the mating portion slides in contact with a circumferential wall of the accommodating groove, the fastening nut is mated with a threaded portion, and a lip seal is held between the mating portion and the accommodating groove. This fixes the lip seal to the piston.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: October 4, 2011
    Assignee: JTEKT Corporation
    Inventors: Takuya Suzuki, Hidetoshi Fujiwara, Toshihiko Shima, Munetoshi Kuroyanagi
  • Publication number: 20110012154
    Abstract: Provided is a GaN-based LED element having a novel structure for improving output by increasing light extraction efficiency.
    Type: Application
    Filed: November 7, 2008
    Publication date: January 20, 2011
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroaki Okagawa, Shin Hiraoka, Takahide Jouichi, Toshihiko Shima