Hirayama; Chuichi

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Kumamoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Material for adsorbing pyrogen
- Patent number 5,498,409
- Issue date Mar 12, 1996
- Hirayama; Chuichi
- Chuichi Hirayama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pyrogen adsorbent containing amide groups
- Patent number 5,279,821
- Issue date Jan 18, 1994
- Hirayama; Chuichi
- Chuichi Hirayama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for preparing granular porous chitosan
- Patent number 4,975,542
- Issue date Dec 4, 1990
- Kurita Water Industries Ltd.
- Chuichi Hirayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Spherical grains of polyamino acid and production method thereof
- Patent number 4,948,816
- Issue date Aug 14, 1990
- Hirayama; Chuichi
- Chuichi Hirayama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Spherical grains of polyamino acid and production method thereof
- Patent number 4,840,975
- Issue date Jun 20, 1989
- Hirayama; Chuichi
- Chuichi Hirayama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE