Katsumi Hirao

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Patents Grantslast 30 patents

Information Patent Grant
Biodegradable cellulose ester composition and article
- Patent number 5,720,803
- Issue date Feb 24, 1998
- Daicel Chemical Industries, Ltd.
- Masanori Itoh
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Biodegradable cellulose ester composition and article
- Patent number 5,609,677
- Issue date Mar 11, 1997
- Daicel Chemical Industries, Ltd.
- Masanori Itoh
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Biodegradable cellulose ester composition and article
- Patent number 5,478,386
- Issue date Dec 26, 1995
- Daicel Chemical Industries, Ltd.
- Masanori Itoh
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES
Information Patent Grant
Binder coated foundry sand grains
- Patent number 4,482,654
- Issue date Nov 13, 1984
- Daicel Chemical Industries, Ltd.
- Kazuyuki Nishikawa
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Binder for casting sand and resin-coated grains of sand
- Patent number 4,379,865
- Issue date Apr 12, 1983
- Daicel Chemical Industries, Ltd.
- Kazuyuki Nishikawa
- B22 - CASTING POWDER METALLURGY