Patents by Inventor Eiji Ihara

Eiji Ihara 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: 20240350970
    Abstract: The present invention provides a separation functional layer that exhibits suppressed leakage of an ionic liquid and has an enhanced strength. A separation functional layer of the present invention includes: an ionic liquid; a polymer A that forms a crystal structure in the ionic liquid; and a polymer B different from the polymer A. A separation membrane of the present invention includes: the separation functional layer; and a porous support member supporting the separation functional layer.
    Type: Application
    Filed: August 22, 2022
    Publication date: October 24, 2024
    Inventors: Yuri ITO, Hisae SHIMIZU, Kensuke TANI, Terukazu IHARA, Eiji KAMIO, Jinhui ZHANG, Hideto MATSUYAMA
  • Patent number: 8328266
    Abstract: A pick-up style utility vehicle has a front seat, a rear seat, and a cargo bed. The cargo bed is expandable forward and has a screen shield for partitioning at a front end thereof. The rear seat has a seat bottom for the rear seat detachably attached to a rear seat attaching portion provided on a vehicle body. The screen shield has a seat holding portion to which the seat bottom, detached from the rear seat attaching portion, is attachable.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: December 11, 2012
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hidekazu Yasui, Hirokazu Morira, Kenji Oda, Takao Kawabata, Masaki Tanaka, Eiji Ihara
  • Patent number: 8096600
    Abstract: A pick-up style utility vehicle has a driver's seat, a seat next to the driver's seat, one or more passenger seats behind the driver's seat, and a cargo bed. Each of all the passenger seats and the seat next to the driver's seat is independently changeable between a first state in which the seat is seatable and a second state in which the seat is retracted so that an occupied space of the seat can be used as part of the cargo bed. Preferably, a screen shield partitioning the cargo bed and a riding space in front of the cargo bed is provided. The screen shield is divided into left and right screen shield members.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: January 17, 2012
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hideaki Shinnoki, Takao Kawabata, Eiji Ihara, Hidekazu Yasui, Shinichi Tamba, Masaki Tanaka
  • Publication number: 20110156420
    Abstract: A pick-up style utility vehicle according to the present invention has a front seat, a rear seat, and a cargo bed, wherein the cargo bed is expandable forward and has a screen shield for partitioning at a front end thereof. The rear seat has a seat bottom for the rear seat detachably attached to a rear seat attaching portion provided on a vehicle body. The screen shield has a seat holding portion to which the seat bottom detached from the rear seat attaching portion is attachable.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Inventors: Hidekazu Yasui, Hirokazu Morira, Kenji Oda, Takao Kawabata, Masaki Tanaka, Eiji Ihara
  • Publication number: 20110156426
    Abstract: A pick-up style utility vehicle according to the present invention has a driver's seat, a seat next to the driver's seat, one or more passenger seats behind the driver's seat, and a cargo bed. Each of all the passenger seats and the seat next to the driver's seat is independently changeable between a first state in which the seat is seatable and a second state in which the seat is retracted so that an occupied space of the seat is used as part of the cargo bed. Preferably, a screen shield partitioning the cargo bed and a riding space in front of the cargo bed is provided. The screen shield is divided into left and right screen shield members.
    Type: Application
    Filed: December 28, 2009
    Publication date: June 30, 2011
    Inventors: HIDEAKI SHINNOKI, TAKAO KAWABATA, EIJI IHARA, HIDEKAZU YASUI, SHINICHI TAMBA, MASAKI TANAKA
  • Patent number: 7703710
    Abstract: A method for producing cubic boron nitride in which hBN is held in the presence of a catalyst substance under conditions in which cBN remains thermodynamically stable, to thereby cause hBN to undergo a phase transition to form cBN, wherein the catalyst substance contains a lithium source, a magnesium source, and a carbon source. The performance of cBN is improved even though phase transition ratio from hBN to cBN is increased.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 27, 2010
    Assignee: Showa Denko K.K.
    Inventors: Eiji Ihara, Taishu Yanagisawa
  • Patent number: 7404832
    Abstract: The present invention relates to a method for producing cubic boron nitride abrasive grains used for producing a grinding wheel, etc., and to cubic boron nitride abrasive grains. The method comprises maintaining a mixture containing hexagonal boron nitride and seed crystals of cubic boron nitride under pressure and temperature conditions where cubic boron nitride remains thermodynamically stable, characterized in that the seed crystals contain cubic boron nitride twin crystals.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: July 29, 2008
    Assignee: Showa Denko K.K.
    Inventors: Hirohiko Ohtsubo, Eiji Ihara, Takuya Okubo, Makoto Kasahara, Makoto Iizuka
  • Patent number: 7214359
    Abstract: By using a CBN synthesis catalyst containing a CBN synthesis catalyst component coated with an organic substance for producing cubic boron nitride (CBN), the CBN can be produced at a high transformation ration and a high yield ratio. Each of the CBN grains produced through this method has a sharp shape with a highly developed (111) plane, exhibits high strength, and exhibits a small reduction in strength due to heating. The amount of catalyst component contained in the CBN is 7.5×10?4 mol or less per 1 mol of CBN.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: May 8, 2007
    Assignee: Showa Denko K.K.
    Inventors: Hirohiko Ohtsubo, Eiji Ihara, Katsuyuki Tsuji
  • Publication number: 20060204421
    Abstract: A method for producing cubic boron nitride in which hBN is held in the presence of a catalyst substance under conditions in which cBN remains thermodynamically stable, to thereby cause hBN to undergo a phase transition to form cBN, wherein the catalyst substance contains a lithium source, a magnesium source, and a carbon source. The performance of cBN is improved even though phase transition ratio from hBN to cBN is increased.
    Type: Application
    Filed: August 19, 2004
    Publication date: September 14, 2006
    Inventors: Eiji Ihara, Taishu Yanagisawa
  • Patent number: 7097678
    Abstract: A metal-coated cubic boron nitride abrasive grain obtained by forming grooves, in which the ratio (w/d) of the width (w) to the depth (d) is less than 1, and the ratio (w/L) of the width (w) to the length (L) is less than 0.1, on the surface of a cubic boron nitride abrasive grain. In this cubic boron nitride abrasive grain, the retention force (bonding strength) between the metallic coating and the cubic boron nitride abrasive grain is improved; therefore, it is possible to fabricate a resin bonded grinding wheel, in which a high grinding ratio (long life) and a low grinding power (superior grinding performance) are achieved, using such cubic boron nitride abrasive grains.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: August 29, 2006
    Assignee: Showa Denko K.K.
    Inventors: Hirohiko Ohtsubo, Eiji Ihara, Tatsuya Shimidzu
  • Publication number: 20050129975
    Abstract: The present invention provides an abrasive which can attain a sufficient retention force in a resinoid grinding wheel even in the case of a small grain size. The abrasive is produced by bonding plural abrasive grains coated with a metal layer by a metal. The metal layer is made of the metal selected from the group consisting of nickel, nickel-phosphorus, cobalt, cobalt-phosphorus, titanium, copper, chromium, iron, zirconium, niobium, molybdenum and tantalum. Also the abrasive grains are made of at least one selected from the group consisting of hard substances such as cubic boron nitride, diamond, alumina and silicon carbide, each having an average grain size within a range from 0.5 to 300 ?m.
    Type: Application
    Filed: April 11, 2003
    Publication date: June 16, 2005
    Inventor: Eiji Ihara
  • Publication number: 20050081454
    Abstract: A metal-coated cubic boron nitride abrasive grain obtained by forming grooves, in which the ratio (w/d) of the width (w) to the depth (d) is less than 1, and the ratio (w/L) of the width (w) to the length (L) is less than 0.1, on the surface of a cubic boron nitride abrasive grain. In this cubic boron nitride abrasive grain, the retention force (bonding strength) between the metallic coating and the cubic boron nitride abrasive grain is improved; therefore, it is possible to fabricate a resin bonded grinding wheel, in which a high grinding ratio (long life) and a low grinding power (superior grinding performance) are achieved, using such cubic boron nitride abrasive grains.
    Type: Application
    Filed: January 5, 2004
    Publication date: April 21, 2005
    Inventors: Hirohiko Ohtsubo, Eiji Ihara, Tatsuya Shimidzu
  • Publication number: 20050081456
    Abstract: Cubic boron nitride abrasive grains which are substantially mono-crystalline and assume a black color. Such abrasive grains preferably have a specific packing ratio. Such abrasive grains are obtained by adding a boron source during synthesizing cubic boron nitride. By using such abrasive grains, a grinding wheel or a coated abrasive, which can improve surface roughness of ground workpieces while maintaining reduced grinding power, is formed.
    Type: Application
    Filed: January 5, 2004
    Publication date: April 21, 2005
    Inventors: Eiji Ihara, Hirohiko Ohtsubo, Tatsuya Shimidzu
  • Publication number: 20040265203
    Abstract: A CBN synthesis catalyst containing a CBN synthesis catalyst component coated with an organic substance is used for producing cubic boron nitride (CBN). The amount by mass of the organic substance is preferably contained 0.01 to 50 parts by mass based on 100 parts by mass of the CBN synthesis catalyst component. The organic substance is preferably stearic acid and/or lauric acid. By use of such a CBN synthesis catalyst, a CBN crystal which has a sharp shape, with the (111) place being developed, and which contains a small amount of a catalyst component(s) incorporated into CBN can be produced at high productivity (percent transformation (high yield)) in a simple manner and operation.
    Type: Application
    Filed: February 2, 2004
    Publication date: December 30, 2004
    Applicant: SHOWA DENKO K.K.
    Inventors: Hirohiko Ohtsubo, Eiji Ihara, Katsuyuki Tsuji
  • Publication number: 20040182011
    Abstract: The present invention relates to a method for producing cubic boron nitride abrasive grains used for producing a grinding wheel, etc., and to cubic boron nitride abrasive grains. The method comprises maintaining a mixture containing hexagonal boron nitride and seed crystals of cubic boron nitride under pressure and temperature conditions where cubic boron nitride remains thermodynamically stable, characterized in that the seed crystals contain cubic boron nitride twin crystals.
    Type: Application
    Filed: May 10, 2004
    Publication date: September 23, 2004
    Inventors: Hirohiko Ohtsubo, Eiji Ihara, Takuya Okubo, Makoto Kasahara, Makoto Iizuka
  • Patent number: 6508996
    Abstract: hBN is converted to cBN by keeping it under temperature and pressure conditions within the range of stability of cubic boron nitride, in the presence of at least one compound selected from amides, imides and carbides of alkali metals and alkaline earth metals, as well as a silicon source and/or a boron source.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: January 21, 2003
    Assignee: Showa Denko K.K.
    Inventors: Kousuke Shioi, Eiji Ihara
  • Publication number: 20010018036
    Abstract: hBN is converted to cBN by keeping it under temperature and pressure conditions within the range of stability of cubic boron nitride, in the presence of at least one compound selected from amides, imides and carbides of alkali metals and alkaline earth metals, as well as a silicon source and/or a boron source.
    Type: Application
    Filed: February 7, 2001
    Publication date: August 30, 2001
    Inventors: Kousuke Shioi, Eiji Ihara
  • Patent number: 6248303
    Abstract: hBN is converted to cBN by keeping it under temperature and pressure conditions within the range of stability of cubic boron nitride, in the presence of at least one compound selected from amides, imides and carbides of alkali metals and alkaline earth metals, as well as a silicon source and/or a boron source.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: June 19, 2001
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Kousuke Shioi, Eiji Ihara
  • Patent number: 6228794
    Abstract: Disclosed are novel catalysts, processes of synthesizing the catalysts and to olefin polymerization processes using the catalysts. The catalysts are cationic complexes comprising a Group 13 element and certain ligands. These compounds behave similarly to Ziegler-Natta catalysts but effectively catalyze the polymerization of olefins in the absence of any transition metal.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: May 8, 2001
    Assignee: University of Iowa Research Foundation
    Inventors: Richard F. Jordan, Martyn P. Coles, Samuel Dagorne, Eiji Ihara
  • Patent number: 5919867
    Abstract: An A-B-A type of block copolymer consisting of polymer block A of (meth)acrylate and polymer block B of olefin, having a Mw/Mn of 1.0 to 2.5, is disclosed. This block copolymer can be produced by polymerizing an olefin using a particular rare earth compound as an initiator, and then polymerizing the formed polymer with a (meth)acrylate.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: July 6, 1999
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hajime Yasuda, Eiji Ihara, Akira Yanagase, Hitoshi Ige, Seiji Tone, Toru Tokimitsu