Harumasa Yamasaki

Person

Wakayama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of forming fixed images
- Patent number 5,446,527
- Issue date Aug 29, 1995
- Kao Corporation
- Shin-ichiro Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Organic silicon compound, method of its production, and photorecept...
- Patent number 5,352,554
- Issue date Oct 4, 1994
- Kao Corporation
- Masayuki Mishima
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic silicon compound, method of its production, and photorecept...
- Patent number 5,290,963
- Issue date Mar 1, 1994
- Kao Corporation
- Masayuki Mishima
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Organic silicon compound, method of its production, and photorecept...
- Patent number 5,187,310
- Issue date Feb 16, 1993
- Kao Corporation
- Masayuki Mishima
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Recording material
- Patent number 5,071,822
- Issue date Dec 10, 1991
- Kao Corporation
- Koichi Nakamura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ion transport photoreceptor for electrophotography
- Patent number 5,032,479
- Issue date Jul 16, 1991
- Kao Corporation
- Masayuki Mishima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for preparing highly reactive, water-absorptive resin
- Patent number 4,727,097
- Issue date Feb 23, 1988
- Kao Corporation
- Takatoshi Kobayashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst for preparation of polyurethane and process for the prepar...
- Patent number 4,714,719
- Issue date Dec 22, 1987
- Kao Corporation
- Harumasa Yamasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Absorptive material
- Patent number 4,666,975
- Issue date May 19, 1987
- Kao Corporation
- Harumasa Yamasaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Twisted yarn
- Patent number 4,524,577
- Issue date Jun 25, 1985
- Kao Corporation
- Osamu Ito
- D02 - YARNS MECHANICAL FINISHING OF YARNS OR ROPES WARPING OR BEAMING
Information Patent Grant
Process for producing highly water absorptive polymer
- Patent number 4,497,930
- Issue date Feb 5, 1985
- Kao Corporation
- Harumasa Yamasaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for producing water-absorbent materials having excellent wa...
- Patent number 4,459,396
- Issue date Jul 10, 1984
- Kao Soap Co., Ltd.
- Harumasa Yamasaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for preparation of high water-absorbent polymer beads
- Patent number 4,446,261
- Issue date May 1, 1984
- Kao Soap Co., Ltd.
- Harumasa Yamasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing fibrous carboxymethyl cellulose
- Patent number 4,410,694
- Issue date Oct 18, 1983
- Kao Soap Co., Ltd.
- Mutsuo Nakayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Disposable diaper
- Patent number 4,357,938
- Issue date Nov 9, 1982
- Kao Soap Co., Ltd.
- Osamu Ito
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Harumasa Yamasaki

Person

Patents Grantslast 30 patents

Method of forming fixed images

Organic silicon compound, method of its production, and photorecept...

Organic silicon compound, method of its production, and photorecept...

Organic silicon compound, method of its production, and photorecept...

Recording material

Ion transport photoreceptor for electrophotography

Process for preparing highly reactive, water-absorptive resin

Catalyst for preparation of polyurethane and process for the prepar...

Absorptive material

Twisted yarn

Process for producing highly water absorptive polymer

Process for producing water-absorbent materials having excellent wa...

Process for preparation of high water-absorbent polymer beads

Process for producing fibrous carboxymethyl cellulose

Disposable diaper