Koji Tsukamoto

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Shizuoka-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Curved flexible impeller
- Patent number 11,053,937
- Issue date Jul 6, 2021
- NOK CORPORATION
- Koji Tsukamoto
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Clutch seal
- Patent number 10,100,881
- Issue date Oct 16, 2018
- NOK Corporation
- Koji Tsukamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sealing device
- Patent number 7,500,459
- Issue date Mar 10, 2009
- NOK Corporation
- Tsukamoto Koji
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Oil seal for automatic transmission
- Patent number 5,954,177
- Issue date Sep 21, 1999
- Aisin AW Co., Ltd.
- Fumitomo Yokoyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
IMPELLER
- Publication number 20190242379
- Publication date Aug 8, 2019
- NOK Corporation
- Koji TSUKAMOTO
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
Impeller For Pump
- Publication number 20180258932
- Publication date Sep 13, 2018
- NOK Corporation
- Koji Tsukamoto
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
CLUTCH SEAL
- Publication number 20150292572
- Publication date Oct 15, 2015
- NOK CORPORATION
- Koji Tsukamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Sealing Device
- Publication number 20080092844
- Publication date Apr 24, 2008
- Koji Tsukamoto
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...