Hiromasa Marumo

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Bearing member and method for manufacturing the same and dynamic pr...
- Patent number 6,758,597
- Issue date Jul 6, 2004
- Sankyo Seiki Mfg. Co., Ltd.
- Takayuki Narita
- G11 - INFORMATION STORAGE
Information Patent Grant
Dynamic pressure bearing device and method of manufacturing the same
- Patent number 6,554,476
- Issue date Apr 29, 2003
- Kabushiki Kaisha Sankyo Seiki Seisakusho
- Masayuki Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Dynamic-pressure fluid bearing
- Patent number 6,155,721
- Issue date Dec 5, 2000
- Sankyo Seiki Mfg. Co., Ltd.
- Hironori Kurosawa
- G02 - OPTICS
Information Patent Grant
Dynamic-pressure fluid bearing
- Patent number 5,763,967
- Issue date Jun 9, 1998
- Sankyo Seiki Mfg. Co., Ltd.
- Hironori Kurosawa
- G02 - OPTICS
Information Patent Grant
Polyarylene sulfide resin composition and optical pick-up parts for...
- Patent number 5,599,864
- Issue date Feb 4, 1997
- Kabushiki Kaisha Sankyo Seiki Seisakusho
- Shogo Ogawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrochromic display device with the counter electrode being prel...
- Patent number 5,122,896
- Issue date Jun 16, 1992
- K.K. Sankyo Seiki Seisakusho
- Yasushi Mizusaki
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical head device and manufacturing method therefor
- Publication number 20060239169
- Publication date Oct 26, 2006
- Hiromasa Marumo
- G11 - INFORMATION STORAGE
Information Patent Application
Bearing member and method for manufacturing the same and dynamic pr...
- Publication number 20020051587
- Publication date May 2, 2002
- Sankyo Seiki Mfg. Co., Ltd.
- Takayuki Narita
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Dynamic pressure bearing device and method of manufacturing the same
- Publication number 20010036327
- Publication date Nov 1, 2001
- Masayuki Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...