Yuzo Hayashi

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Kawagoe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gate valve
- Patent number 6,966,538
- Issue date Nov 22, 2005
- Irie Koken Co., Ltd.
- Yuzo Hayashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Regenerator and regenerative material used therein
- Patent number 6,475,935
- Issue date Nov 5, 2002
- Irie Kouken Co., LTD
- Yoshihiro Ishizaki
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Non-sliding vacuum gate valve
- Patent number 5,626,324
- Issue date May 6, 1997
- Irie Koken Co., Ltd.
- Yoshinobu Nakamura
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Valve body for non-sliding type gate valve
- Patent number 5,087,017
- Issue date Feb 11, 1992
- Irie Koken Kabushiki Kaisha
- Toshio Sawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Non-sliding gate valve for high vacuum use
- Patent number 5,002,255
- Issue date Mar 26, 1991
- Irie Koken Kabushiki Kaisha
- Toshio Sawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Gate valve
- Publication number 20050092953
- Publication date May 5, 2005
- Yuzo Hayashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...