Yasushi Yoshida

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semi-closed type breathing apparatus for removing carbon dioxide fr...
- Patent number 5,577,498
- Issue date Nov 26, 1996
- Zexel Corporation
- Akihiko Yoshida
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Canister for semi-closed breathing apparatus
- Patent number 5,471,978
- Issue date Dec 5, 1995
- Zexel Corporation
- Akihiko Yoshida
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Mouthpiece for semi-closed type of breathing apparatus
- Patent number 5,429,124
- Issue date Jul 4, 1995
- Zexel Corporation
- Akihiko Yoshida
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT