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Nittan Valve Company, Limited

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  • Tokyo, JP
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for manufacturing engine poppet valve
    • Patent number 11,536,167
    • Issue date Dec 27, 2022
    • NITTAN VALVE CO., LTD.
    • Koji Kunitake
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Friction welding method and friction welding apparatus
    • Patent number 11,298,776
    • Issue date Apr 12, 2022
    • NITTAN VALVE CO., LTD.
    • Ryo Onose
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hollow exhaust poppet valve
    • Patent number 11,300,018
    • Issue date Apr 12, 2022
    • NITTAN VALVE CO., LTD.
    • Koji Kunitake
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Method of manufacturing engine valve intermediate product with boss...
    • Patent number 11,285,570
    • Issue date Mar 29, 2022
    • NITTAN VALVE CO., LTD.
    • Atsuyuki Ichimiya
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cylinder head and engine
    • Patent number 11,143,063
    • Issue date Oct 12, 2021
    • NITTAN VALVE CO., LTD.
    • Tai Hwan Lee
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Mechanical lash adjuster
    • Patent number 10,934,897
    • Issue date Mar 2, 2021
    • NITTAN VALVE CO., LTD.
    • Michihiro Kameda
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hollow single-phase induction motor
    • Patent number 10,804,780
    • Issue date Oct 13, 2020
    • NITTAN VALVE CO., LTD.
    • Michihiro Kameda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Chuck device
    • Patent number 10,799,957
    • Issue date Oct 13, 2020
    • Nittan Valve Co., Ltd.
    • Takehiro Okuno
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for filling with metallic sodium
    • Patent number 10,710,153
    • Issue date Jul 14, 2020
    • Nittan Valve Co., Ltd.
    • Shigeru Uchida
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Cutting apparatus and cutting blade
    • Patent number 10,569,318
    • Issue date Feb 25, 2020
    • Nittan Valve Co., Ltd.
    • Masaharu Takahashi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Direct-acting valve lifter of internal combustion engine
    • Patent number RE47823
    • Issue date Jan 21, 2020
    • Nittan Valve Co., Ltd.
    • Makoto Yasuike
  • Information Patent Grant

    Poppet valve and method for manufacturing same
    • Patent number 10,473,002
    • Issue date Nov 12, 2019
    • Nittan Valve Co., Ltd.
    • Maiku Mikami
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method and apparatus for flaw inspection of friction-weld part of s...
    • Patent number 10,473,622
    • Issue date Nov 12, 2019
    • Nittan Valve Co., Ltd.
    • Yuichi Abe
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Torque transmission device
    • Patent number 10,451,162
    • Issue date Oct 22, 2019
    • Nittan Valve Co., Ltd.
    • Takuya Furukawa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic lash adjuster and method for using hydraulic lash adjuster
    • Patent number 10,352,203
    • Issue date Jul 16, 2019
    • Nittan Valve Co., Ltd.
    • Hiroyuki Ozawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method for purifying metallic sodium
    • Patent number 10,316,390
    • Issue date Jun 11, 2019
    • Nittan Valve Co., Ltd.
    • Shigeru Uchida
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Hydraulic lash adjuster
    • Patent number 10,301,979
    • Issue date May 28, 2019
    • Nittan Valve Co., Ltd.
    • Yukio Kubota
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Assembly of internal combustion engine valve and valve seat
    • Patent number 10,287,933
    • Issue date May 14, 2019
    • Nippon Piston Ring Co., Ltd.
    • Satoshi Ikemi
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Highly-viscous substance dispensing method and highly-viscous subst...
    • Patent number 10,252,307
    • Issue date Apr 9, 2019
    • Nittan Valve Co., Ltd.
    • Koichi Homma
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of machining screw
    • Patent number 10,173,257
    • Issue date Jan 8, 2019
    • Nittan Valve Co., Ltd.
    • Michihiro Kameda
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Bar material transfer method and conveyor
    • Patent number 10,029,298
    • Issue date Jul 24, 2018
    • Nittan Valve Co., Ltd.
    • Takahiro Shimizu
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Hollow poppet valve
    • Patent number 9,920,663
    • Issue date Mar 20, 2018
    • Nittan Valve Co., Ltd.
    • Osamu Tsuneishi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method for supplying inert gas into poppet valve intermediate and a...
    • Patent number 9,840,948
    • Issue date Dec 12, 2017
    • Nittan Valve Co., Ltd.
    • Hisanaga Yokoyama
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hydraulic lash adjuster
    • Patent number 9,803,518
    • Issue date Oct 31, 2017
    • Nittan Valve Co., Ltd.
    • Yukio Kubota
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hollow poppet valve
    • Patent number 9,790,822
    • Issue date Oct 17, 2017
    • Nittan Valve Co., Ltd.
    • Osamu Tsuneishi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method of manufacturing a hollow poppet valve
    • Patent number 9,751,164
    • Issue date Sep 5, 2017
    • Nittan Valve Co., Ltd.
    • Kazuhiro Ishii
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hydraulic lash adjuster
    • Patent number 9,739,181
    • Issue date Aug 22, 2017
    • Nittan Valve Co., Ltd.
    • Hiroyuki Ozawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hollow poppet valve
    • Patent number 9,689,506
    • Issue date Jun 27, 2017
    • Nittan Valve Co., Ltd.
    • Koichi Homma
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Direct-acting valve lifter of internal combustion engine
    • Patent number 9,657,606
    • Issue date May 23, 2017
    • Nittan Valve Co., Ltd.
    • Makoto Yasuike
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    DLC film coating and coated valve lifter
    • Patent number 9,657,384
    • Issue date May 23, 2017
    • Nittan Valve Co., Ltd.
    • Yukio Kubota
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

  • Information Patent Application

    CYLINDER HEAD AND ENGINE
    • Publication number 20210285345
    • Publication date Sep 16, 2021
    • NITTAN VALVE CO., LTD.
    • Tai Hwan LEE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Method for Manufacturing Engine Poppet Valve
    • Publication number 20210270154
    • Publication date Sep 2, 2021
    • NITTAN VALVE CO., LTD.
    • Koji KUNITAKE
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Method of Manufacturing Engine Valve Intermediate Product with Boss...
    • Publication number 20210245309
    • Publication date Aug 12, 2021
    • NITTAN VALVE CO., LTD.
    • Atsuyuki ICHIMIYA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    REDUCTION GEAR
    • Publication number 20210207685
    • Publication date Jul 8, 2021
    • NITTAN VALVE CO., LTD.
    • Michihiro Kameda
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Wastegate Valve
    • Publication number 20210017900
    • Publication date Jan 21, 2021
    • NITTAN VALVE CO., LTD.
    • Maiku MIKAMI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Hollow Exhaust Poppet Valve
    • Publication number 20210003044
    • Publication date Jan 7, 2021
    • NITTAN VALVE CO., LTD.
    • Koji KUNITAKE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Multirow Ball Bearing and Manufacturing Method Therefor
    • Publication number 20200240466
    • Publication date Jul 30, 2020
    • NITTAN VALVE CO., LTD.
    • Michihiro KAMEDA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    WASTEGATE VALVE
    • Publication number 20200088093
    • Publication date Mar 19, 2020
    • NITTAN VALVE CO., LTD.
    • Shigeru Endo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Mechanical Lash Adjuster
    • Publication number 20190316495
    • Publication date Oct 17, 2019
    • NITTAN VALVE CO., LTD.
    • Michihiro KAMEDA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MACHINING APPARATUS, METHOD FOR USING MACHINING APPARATUS AND CHUCK...
    • Publication number 20190240743
    • Publication date Aug 8, 2019
    • NITTAN VALVE CO., LTD.
    • Takehiro OKUNO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Friction Welding Method and Friction Welding Apparatus
    • Publication number 20190168335
    • Publication date Jun 6, 2019
    • NITTAN VALVE CO., LTD.
    • Ryo ONOSE
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Valve Mechanism and Mechanical Lash Adjuster
    • Publication number 20190145287
    • Publication date May 16, 2019
    • NITTAN VALVE CO., LTD.
    • Michihiro KAMEDA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Hollow Single-Phase Induction Motor
    • Publication number 20190081541
    • Publication date Mar 14, 2019
    • NITTAN VALVE CO., LTD.
    • Michihiro KAMEDA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    METHOD FOR FILLING WITH METALLIC SODIUM
    • Publication number 20190030595
    • Publication date Jan 31, 2019
    • NITTAN VALVE CO., LTD.
    • Shigeru UCHIDA
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    INTERNAL COMBUSTION ENGINE COMPONENT AND PRODUCING METHOD THEREFOR
    • Publication number 20180298792
    • Publication date Oct 18, 2018
    • KOBE CERAMICS CORPORATION
    • Hideo Torii
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    HIGHLY-VISCOUS SUBSTANCE DISPENSING METHOD AND HIGHLY-VISCOUS SUBST...
    • Publication number 20180264530
    • Publication date Sep 20, 2018
    • NITTAN VALVE CO., LTD.
    • Koichi HOMMA
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Method and Apparatus for Flaw Inspection of Friction-Weld Part of S...
    • Publication number 20180156753
    • Publication date Jun 7, 2018
    • NITTAN VALVE CO., LTD.
    • Yuichi ABE
    • G01 - MEASURING TESTING
  • Information Patent Application

    METHOD FOR PURIFYING METALLIC SODIUM
    • Publication number 20180142324
    • Publication date May 24, 2018
    • NITTAN VALVE CO., LTD.
    • Shigeru UCHIDA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    CUTTING APPARATUS AND CUTTING BLADE
    • Publication number 20180104730
    • Publication date Apr 19, 2018
    • NITTAN VALVE CO., LTD.
    • Masaharu TAKAHASHI
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Application

    TORQUE TRANSMISSION DEVICE
    • Publication number 20180066742
    • Publication date Mar 8, 2018
    • NITTAN VALVE CO., LTD.
    • Takuya FURUKAWA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    METHOD OF MACHINING SCREW
    • Publication number 20180050383
    • Publication date Feb 22, 2018
    • NITTAN VALVE CO., LTD.
    • Michihiro KAMEDA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    METHOD FOR SUPPLYING INERT GAS INTO POPPET VALVE INTERMEDIATE AND A...
    • Publication number 20170276031
    • Publication date Sep 28, 2017
    • NITTAN VALVE CO., LTD.
    • Hisanaga YOKOYAMA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    HYDRAULIC LASH ADJUSTER AND METHOD FOR USING HYDRAULIC LASH ADJUSTER
    • Publication number 20170218796
    • Publication date Aug 3, 2017
    • NITTAN VALVE CO., LTD.
    • Hiroyuki OZAWA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    POPPET VALVE AND METHOD FOR MANUFACTURING SAME
    • Publication number 20170211434
    • Publication date Jul 27, 2017
    • NITTAN VALVE CO., LTD.
    • Maiku MIKAMI
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    BAR MATERIAL TRANSFER METHOD AND CONVEYOR
    • Publication number 20170072457
    • Publication date Mar 16, 2017
    • NITTAN VALVE CO., LTD.
    • Takahiro Shimizu
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    HYDRAULIC LASH ADJUSTER
    • Publication number 20170044937
    • Publication date Feb 16, 2017
    • NITTAN VALVE CO., LTD.
    • Hiroyuki OZAWA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    HYDRAULIC LASH ADJUSTER
    • Publication number 20160376936
    • Publication date Dec 29, 2016
    • NITTAN VALVE CO., LTD.
    • Yukio Kubota
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    HOLLOW POPPET VALVE
    • Publication number 20160356186
    • Publication date Dec 8, 2016
    • NITTAN VALVE CO., LTD.
    • Osamu Tsuneishi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    POPPET VALVE
    • Publication number 20160348546
    • Publication date Dec 1, 2016
    • NITTAN VALVE CO., LTD.
    • Kazunori Kurahashi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ASSEMBLY OF INTERNAL COMBUSTION ENGINE VALVE AND VALVE SEAT
    • Publication number 20160326919
    • Publication date Nov 10, 2016
    • NIPPON PISTON RING CO., LTD.
    • Satoshi IKEMI
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Trademarklast 30 trademarks

  • Information Trademark

    85958553
    • Serial number 85958553
    • Registration number 4487698
    • Filing date Jun 13, 2013
    • Nittan Valve Co., Ltd.
    • 7 - Machines and machine tools
  • Information Trademark

    85958523 - NITTAN
    • Serial number 85958523
    • Registration number 4470375
    • Filing date Jun 13, 2013
    • Nittan Valve Co., Ltd.
    • 7 - Machines and machine tools
  • Information Trademark

    85091451
    • Serial number 85091451
    • Filing date Jul 23, 2010
    • Nittan Valve Co., Ltd.
    • 7 - Machines and machine tools
  • Information Trademark

    85091431 - NITTAN VALVE
    • Serial number 85091431
    • Filing date Jul 23, 2010
    • Nittan Valve Co., Ltd.
    • 7 - Machines and machine tools
  • Information Trademark

    85091508 - NT-VCP
    • Serial number 85091508
    • Registration number 4261778
    • Filing date Jul 23, 2010
    • Nittan Valve Co., Ltd.
    • 7 - Machines and machine tools