Yoshitaka Takahashi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pickup device applicable to two kinds of recording media wi...
- Patent number 6,480,455
- Issue date Nov 12, 2002
- Ricoh Company, Ltd.
- Yoshitaka Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pick-up apparatus
- Patent number 6,477,130
- Issue date Nov 5, 2002
- Ricoh Company Ltd.
- Yoshitaka Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pick-up apparatus
- Patent number 6,301,216
- Issue date Oct 9, 2001
- Ricoh Company, Ltd.
- Yoshitaka Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Display system with image magnification capability
- Patent number 5,635,951
- Issue date Jun 3, 1997
- NEC Corporation
- Yoshitaka Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information recording medium
- Patent number 4,751,124
- Issue date Jun 14, 1988
- Konishiroku Photo Industry Co., Ltd.
- Takahiro Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Safety control device of commutator motors
- Patent number 4,524,309
- Issue date Jun 18, 1985
- Michio Hisatake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
IMAGING DEVICE
- Publication number 20180152626
- Publication date May 31, 2018
- Kei MATSUOKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Optical pickup device applicable to two kinds of recording media wi...
- Publication number 20020064121
- Publication date May 30, 2002
- Yoshitaka Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pick-up apparatus
- Publication number 20020024920
- Publication date Feb 28, 2002
- Yoshitaka Takahashi
- G11 - INFORMATION STORAGE