Yuji Sakamoto

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Himeji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Water-absorbent resin composition
- Patent number 4,972,019
- Issue date Nov 20, 1990
- Seitetsu Kagaku Co., Ltd.
- Shigeji Obayashi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for producing a water-absorbent resin
- Patent number 4,880,888
- Issue date Nov 14, 1989
- Seitetsu Kagaku Co., Ltd.
- Shigeji Obayashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-absorbent resin composition
- Patent number 4,863,989
- Issue date Sep 5, 1989
- Seitetsu Kagaku Co., Ltd.
- Shigeji Obayashi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for granulating a water-absorbent resin employing (a) water...
- Patent number 4,732,968
- Issue date Mar 22, 1988
- Seitetsu Kagaku Co., Ltd.
- Shigeji Obayashi
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for producing a water-absorbent resin
- Patent number 4,683,274
- Issue date Jul 28, 1987
- Seitetsu Kagaku Co., Ltd.
- Morio Nakamura
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE