Tsutomu Ishida

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Railway carrier apparatus for semiconductor wafers
- Patent number 4,903,610
- Issue date Feb 27, 1990
- Shinko Electric Co., Ltd.
- Takashi Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transporting robot for semiconductor wafers
- Patent number 4,904,153
- Issue date Feb 27, 1990
- Shimizu Construction Co., Ltd.
- Yoshiyuki Iwasawa
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Dusttight storage cabinet apparatus for use in clean rooms
- Patent number 4,867,629
- Issue date Sep 19, 1989
- Shimizu Construction Co., Ltd.
- Yoshiyuki Iwasawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transfer system in a clean room
- Patent number 4,826,360
- Issue date May 2, 1989
- Shimizu Construction Co., Ltd.
- Yoshiyuki Iwasawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor processing system
- Patent number 4,781,511
- Issue date Nov 1, 1988
- Shimizu Construction Co., Ltd.
- Hiroshi Harada
- H01 - BASIC ELECTRIC ELEMENTS