Saburo Yasukawa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Control system for power transmission and distribution system
- Patent number 5,760,492
- Issue date Jun 2, 1998
- Hitachi, Ltd.
- Minoru Kanoi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Image processing system suitable for use for a facsimile
- Patent number 5,177,625
- Issue date Jan 5, 1993
- Hitachi, Ltd.
- Keisuke Nakashima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multi-color document reading apparatus for facsimile and multi-colo...
- Patent number 4,926,253
- Issue date May 15, 1990
- Hitachi, Ltd.
- Keisuke Nakashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid fuel cell
- Patent number 4,629,664
- Issue date Dec 16, 1986
- Hitachi, Ltd.
- Tsutomu Tsukui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fuel cell
- Patent number 4,407,904
- Issue date Oct 4, 1983
- Hitachi, Ltd.
- Norihira Uozumi
- H01 - BASIC ELECTRIC ELEMENTS