Yoshiaki Tomisawa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method employing input and output staging chamber devices for reduc...
- Patent number 4,986,869
- Issue date Jan 22, 1991
- Hitachi Chemical Co., Ltd.
- Yoshiaki Tomisawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Pressure seal structure and pressure sealed transfer mechanism
- Patent number 4,398,728
- Issue date Aug 16, 1983
- Hitachi Chemical Company, Limited
- Hiromu Sukegawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...