Yukio Saitoh

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing powdered carboxyl-containing polymer
- Patent number 5,543,440
- Issue date Aug 6, 1996
- Mitsubishi Chemical Corporation
- Kazuhide Hayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Thermoplastic resin film with excellent offset printability and off...
- Patent number 5,397,637
- Issue date Mar 14, 1995
- Oji Yuka Goseishi Co., Ltd.
- Koichi Asami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Hair cosmetic compositions comprising sulfide linked polysiloxanes
- Patent number 5,362,485
- Issue date Nov 8, 1994
- Mitsubishi Petrochemical Company, Ltd.
- Kazuhide Hayama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Color developer for pressure-sensitive copying paper
- Patent number 5,049,629
- Issue date Sep 17, 1991
- Mitsubishi Petrochemical Co., Ltd.
- Kazuhide Hayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Developing composition and a sheet for pressure-sensitive copy paper
- Patent number 4,839,457
- Issue date Jun 13, 1989
- Mitsubishi Petrochemical Co., Ltd.
- Kazuhide Hayama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...