Hirotsugu Arai

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Route guidance display device
- Patent number 4,937,570
- Issue date Jun 26, 1990
- Mitsubishi Denki Kabushiki Kaisha
- Fumio Matsukawa
- G08 - SIGNALLING
Information Patent Grant
Liquid crystal display device having interdigitated common electrod...
- Patent number 4,579,424
- Issue date Apr 1, 1986
- Mitsubishi Denki Kabushiki Kaisha
- Fumio Matsukawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electronic analog display device
- Patent number 4,518,959
- Issue date May 21, 1985
- Mitsubishi Denki Kabushiki Kaisha
- Fumio Ueda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS