Hiroyuki Maeda

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
IC card having a display for displaying a response state
- Patent number 6,454,172
- Issue date Sep 24, 2002
- Rohm Co., Ltd.
- Hiroyuki Maeda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Transporting device for moving a reproducing head of an information...
- Patent number 5,995,464
- Issue date Nov 30, 1999
- Rohm Co. Ltd.
- Naruhiro Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk reproducing apparatus having a disk diameter determining function
- Patent number 5,901,126
- Issue date May 4, 1999
- Rohm Co. Ltd.
- Naruhiro Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for detecting the end of battery life, power supply circuit...
- Patent number 5,698,971
- Issue date Dec 16, 1997
- Rohm Co., Ltd.
- Hitoshi Sahai
- G01 - MEASURING TESTING
Information Patent Grant
Disk reproducing apparatus having a disk diameter determining function
- Patent number 5,696,744
- Issue date Dec 9, 1997
- Rohm Co., Ltd.
- Naruhiro Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording device and video device using the same
- Patent number 5,337,367
- Issue date Aug 9, 1994
- Rohm Co., Ltd.
- Hiroyuki Maeda
- G11 - INFORMATION STORAGE