Hirofumi Tominaga

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Patents Grantslast 30 patents

Information Patent Grant
Goggles
- Patent number 8,959,669
- Issue date Feb 24, 2015
- Yamamoto Kogaku Co. LTD
- Hirofumi Tominaga
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Swimming goggles
- Patent number 8,650,667
- Issue date Feb 18, 2014
- Yamamoto Kagaku Co., Ltd.
- Hirofumi Tominaga
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Goggles
- Patent number 7,526,813
- Issue date May 5, 2009
- Yamamoto Kogaku Co., Ltd.
- Hirofumi Tominaga
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Swimming goggles
- Patent number 7,490,365
- Issue date Feb 17, 2009
- Yamamoto Kogaku Co., Ltd.
- Katsumi Matsumoto
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PROTECTIVE GLASSES
- Publication number 20130145527
- Publication date Jun 13, 2013
- KOWA Company, Ltd.
- Yoshihiro Miwa
- G02 - OPTICS
Information Patent Application
SWIMMING GOGGLES
- Publication number 20110088150
- Publication date Apr 21, 2011
- YAMAMOTO KOGAKU CO., LTD.
- Hirofumi Tominaga
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Goggles
- Publication number 20100229291
- Publication date Sep 16, 2010
- YAMAMOTO KOGAKU CO., LTD.
- Hirofumi Tominaga
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Swimming goggles
- Publication number 20050241051
- Publication date Nov 3, 2005
- Katsumi Matsumoto
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Goggles
- Publication number 20050183191
- Publication date Aug 25, 2005
- YAMAMOTO KOGAKU CO., LTD.
- Hirofumi Tominaga
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE