Hiroyoshi Yasui

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hydrodynamic bearing device
- Patent number 5,403,098
- Issue date Apr 4, 1995
- Koyo Seiko Co., Ltd.
- Hiroyoshi Yasui
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bi-directional oil seal with leakage recovering rib formations
- Patent number 5,002,289
- Issue date Mar 26, 1991
- Koyo Seiko Co., Ltd.
- Hiroyoshi Yasui
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Diurea type grease composition
- Patent number 4,668,411
- Issue date May 26, 1987
- Koyo Seiko Co., Ltd.
- Hiroyoshi Yasui
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Sealed rolling bearing with a flow reducing grease passage
- Patent number 4,655,617
- Issue date Apr 7, 1987
- Koyo Seiko Co., Ltd.
- Hiroyoshi Yasui
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Tapered roller bearing
- Patent number 4,523,862
- Issue date Jun 18, 1985
- Koyo Seiko Company Limited
- Hiroyoshi Yasui
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rust preventive oil for a low frictional torque tapered roller bearing
- Patent number 4,464,275
- Issue date Aug 7, 1984
- Koyo Seiko Co., Ltd.
- Hiroyoshi Yasui
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...