Hiroshi Katayama

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Higashi-Hiroshima-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pickup device having a wavelength selecting film and an opt...
- Patent number 7,321,533
- Issue date Jan 22, 2008
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head
- Patent number 5,737,297
- Issue date Apr 7, 1998
- Sharp Kabushiki Kaisha
- Tomio Mashiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head with adjustable output power detector
- Patent number 5,515,350
- Issue date May 7, 1996
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head with reduced aberration
- Patent number 5,270,997
- Issue date Dec 14, 1993
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Light spot position detector and optical head
- Patent number 5,255,252
- Issue date Oct 19, 1993
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical type position detecting device
- Patent number 5,194,919
- Issue date Mar 16, 1993
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup apparatus using plural laser sources of different wa...
- Patent number 5,093,821
- Issue date Mar 3, 1992
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
DASHBOARD CAMERA
- Publication number 20190377244
- Publication date Dec 12, 2019
- Sharp Kabushiki Kaisha
- HIROSHI KATAYAMA
- B60 - VEHICLES IN GENERAL
Information Patent Application
OPTICAL PICKUP DEVICE HAVING A WAVELENGTH SELECTING FILM AND AN OPT...
- Publication number 20080031121
- Publication date Feb 7, 2008
- SHARP KABUSHIKI KAISHA
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor laser device and optical pickup device having the device
- Publication number 20060077864
- Publication date Apr 13, 2006
- SHARP KABUSHIKI KAISHA
- Hiroshi Katayama
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20030218952
- Publication date Nov 27, 2003
- Sharp Kabushiki Kaisha
- Hiroshi Katayama
- G11 - INFORMATION STORAGE