Hiroyoshi Hamanaka

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Patents Grantslast 30 patents

Information Patent Grant
Permanent antistatic resin composition
- Patent number 5,002,991
- Issue date Mar 26, 1991
- Mitsubishi Petrochemical Company Limited
- Hiroyoshi Hamanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Permanent antistatic resin composition
- Patent number 5,002,992
- Issue date Mar 26, 1991
- Mitsubishi Petrochemical Company Limited
- Hiroyoshi Hamanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cationic surface active agents
- Patent number 4,385,184
- Issue date May 24, 1983
- Hiroyoshi Hamanaka
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Antibacterial surface active agent containing azaalkenelactam
- Patent number 4,346,087
- Issue date Aug 24, 1982
- Toho Chemical Industry Co., Ltd.
- Hiroyoshi Hamanaka
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Automotive brake fluid compositions including semipolar borates and...
- Patent number 4,192,759
- Issue date Mar 11, 1980
- Toho Chemical Industry Co., Ltd.
- Hiroyoshi Hamanaka
- C07 - ORGANIC CHEMISTRY