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KOYO SEIKO CO. LTD.

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  • Osaka, JP
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Briquette for raw material for iron manufacture and briquette for i...
    • Patent number 7,438,740
    • Issue date Oct 21, 2008
    • Koyo Seiko Co. Ltd.
    • Mitsuma Matsuda
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Ball screw mechanism for electric power steering apparatus
    • Patent number 7,322,256
    • Issue date Jan 29, 2008
    • Koyo Seiko Co. Ltd.
    • Masato Mizuhara
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Torque sensor, wire harness, electric power steering assembly and t...
    • Patent number 7,308,833
    • Issue date Dec 18, 2007
    • Favess Co., Ltd.
    • Takahiro Sanada
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Electric power steering apparatus
    • Patent number 7,159,689
    • Issue date Jan 9, 2007
    • Koyo Seiko Co. Ltd.
    • Tetsuya Murakami
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Electric power steering apparatus
    • Patent number 6,892,120
    • Issue date May 10, 2005
    • Koyo Seiko, Co., Ltd.
    • Koji Kanda
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Tilt steering apparatus
    • Patent number 6,851,331
    • Issue date Feb 8, 2005
    • Koyo Seiko., Ltd.
    • Yoshikazu Kuroumaru
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Toroidal continuously variable transmission
    • Patent number 6,780,139
    • Issue date Aug 24, 2004
    • Koyo Seiko Company, Ltd.
    • Yasuharu Misada
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    One-way clutch
    • Patent number 6,705,445
    • Issue date Mar 16, 2004
    • Koyo Seiko, Co., Ltd.
    • Takaaki Ikeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tilt steering apparatus
    • Patent number 6,692,025
    • Issue date Feb 17, 2004
    • Koyo Seiko, Ltd.
    • Koji Yoshioka
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Variator disc and a method of fabricating the same
    • Patent number 6,685,596
    • Issue date Feb 3, 2004
    • Koyo Seiko Company, Ltd.
    • Masao Goto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Electric power steering system
    • Patent number 6,600,280
    • Issue date Jul 29, 2003
    • Koyo Seiko Co, Ltd.
    • Koji Kanda
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Power steering apparatus
    • Patent number 6,311,799
    • Issue date Nov 6, 2001
    • Koyo Seiko Co. Ltd.
    • Hiroaki Kaji
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Electric power steering apparatus
    • Patent number 5,925,995
    • Issue date Jul 20, 1999
    • Koyo Seiko Co. Ltd.
    • Kazuyuki Yoshida
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Power steering device
    • Patent number 5,844,386
    • Issue date Dec 1, 1998
    • Koyo Seiko Co. Ltd.
    • Hirofumi Matsuoka
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Eccentric rolling bearing device
    • Patent number 5,577,846
    • Issue date Nov 26, 1996
    • Koyo Seiko, Co., Ltd.
    • Kenji Takahashi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Magnetic drive device
    • Patent number 5,270,600
    • Issue date Dec 14, 1993
    • Koyo Seiko Co. Ltd.
    • Taisaku Hashimoto
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Power steering apparatus
    • Patent number 5,255,755
    • Issue date Oct 26, 1993
    • Koyo Seiko, Co., Ltd.
    • Jian-Guo Fu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    One-way clutch
    • Patent number 5,156,246
    • Issue date Oct 20, 1992
    • Koyo Seiko Company, Ltd.
    • Kazuo Iga
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rolling bearing with a sensor unit
    • Patent number 5,140,849
    • Issue date Aug 25, 1992
    • Agency of Industrial Science and Technology
    • Kiyoshi Fujita
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Method for predicting destruction of a bearing utilizing a rolling-...
    • Patent number 5,140,858
    • Issue date Aug 25, 1992
    • Koyo Seiko Co. Ltd.
    • Shigeto Nishimoto
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Torque sensor
    • Patent number 4,996,890
    • Issue date Mar 5, 1991
    • Koyo Seiko Co. Ltd.
    • Manabu Taniguchi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Power transmission apparatus
    • Patent number 4,995,491
    • Issue date Feb 26, 1991
    • Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    • Takeo Hiramatsu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Power transmission apparatus
    • Patent number 4,980,521
    • Issue date Dec 25, 1990
    • Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    • Takeo Hiramatsu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Drive coupling unit
    • Patent number 4,919,248
    • Issue date Apr 24, 1990
    • Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    • Takeo Hiramatsu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Drive mechanism for tiltable steering column
    • Patent number 4,878,394
    • Issue date Nov 7, 1989
    • Koyo Seiko Kabushiki Kaisha
    • Yoshiyuki Nakamura
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Ceramic bearing construction
    • Patent number 4,792,244
    • Issue date Dec 20, 1988
    • Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    • Yuko Yamashita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Power steering system
    • Patent number 4,787,469
    • Issue date Nov 29, 1988
    • Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    • Hiroshi Yoshida
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Oil pressure reaction control valve for power steering apparatus
    • Patent number 4,784,235
    • Issue date Nov 15, 1988
    • Koyo Seiko Kabushiki Kaisha
    • Waichiro Ijiri
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Apparatus for adjusting position of steering wheel
    • Patent number 4,774,851
    • Issue date Oct 4, 1988
    • Koyo Seiko Kabushiki Kaisha
    • Hiroshi Iwanami
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Steering force control device for power steering apparatus
    • Patent number 4,718,514
    • Issue date Jan 12, 1988
    • Koyo Seiko Kabushiki Kaisha
    • Shuzo Hirakushi
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

  • Information Patent Application

    Coated article, manufacturing method therefor and coating apparatus
    • Publication number 20060134344
    • Publication date Jun 22, 2006
    • Koyo Seiko Co.,
    • Kouji Kitahata
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Rocker arm bearing
    • Publication number 20060126985
    • Publication date Jun 15, 2006
    • Koyo Seiko, Co., Ltd.
    • Shinya Ochi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Hub unit with sensor
    • Publication number 20060075833
    • Publication date Apr 13, 2006
    • KOYO SEIKO CO. LTD.
    • Katsura Koyagi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    One way clutch
    • Publication number 20050217959
    • Publication date Oct 6, 2005
    • KOYO SEIKO CO. LTD.
    • Kazuo Iga
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Gear, reduction gear combination and electric power steering apparatus
    • Publication number 20040084865
    • Publication date May 6, 2004
    • Koyo Seiko Co.,Ltd.
    • Etsurou Kitami
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Brushless DC motor
    • Publication number 20020171308
    • Publication date Nov 21, 2002
    • KOYO SEIKO CO. LTD.
    • Hirohide Inayama
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Brushless DC motor and method of manufacturing brushless DC motor
    • Publication number 20020140308
    • Publication date Oct 3, 2002
    • KOYO SEIKO CO. LTD.
    • Hirohide Inayama
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Electric power steering apparatus
    • Publication number 20010027364
    • Publication date Oct 4, 2001
    • KOYO SEIKO CO. LTD.
    • Hirofumi Matsuoka
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Trademarklast 30 trademarks

  • Information Trademark

    73034217
    • Serial number 73034217
    • Registration number 1020376
    • Filing date Oct 10, 1974
    • KOYO SEIKO COMPANY, LIMITED
    • 7 - Machines and machine tools
  • Information Trademark

    72423964
    • Serial number 72423964
    • Registration number 997520
    • Filing date May 11, 1972
    • KOYO SEIKO COMPANY
    • 7 - Machines and machine tools
  • Information Trademark

    72423965
    • Serial number 72423965
    • Registration number 998134
    • Filing date May 11, 1972
    • KOYO SEIKO COMPANY, LIMITED
    • 7 - Machines and machine tools
  • Information Trademark

    72254693 - KOYO
    • Serial number 72254693
    • Registration number 838318
    • Filing date Sep 19, 1966
    • KOYO SEIKO CO. LTD.
    • 7 - Machines and machine tools