Toshiyuki Niwa

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Gifu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hollow granular medicine and its preparation
- Patent number 5,087,455
- Issue date Feb 11, 1992
- Showa Yakuhin Kako Co. Ltd.
- Toshiyuki Niwa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hollow granular medicine and its preparation
- Patent number 5,057,323
- Issue date Oct 15, 1991
- Showa Yakuhin Kako Co., Ltd.
- Toshiyuki Niwa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preparation of coated granular ibuprofen microsphere
- Patent number 4,726,966
- Issue date Feb 23, 1988
- Showa Shinyaku Co., Ltd.
- Yoshiaki Kawashima
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE