Masami Kuwahara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electron beam irradiation process and an object irradiated with an...
- Patent number 6,504,163
- Issue date Jan 7, 2003
- Toyo Ink Manufacturing Co., Ltd.
- Michio Takayama
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Electron beam irradiating method and object to be irradiated with e...
- Patent number 6,188,075
- Issue date Feb 13, 2001
- Toyo Ink Manufacturing Co., Ltd.
- Michio Takayama
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Paint used in forming a magnetic recording medium backcoat layer
- Patent number 5,868,825
- Issue date Feb 9, 1999
- Toyo Ink Manufacturing Co., Ltd.
- Yoshio Hara
- G11 - INFORMATION STORAGE
Information Patent Grant
Coating composition
- Patent number 5,698,618
- Issue date Dec 16, 1997
- Toyo Ink Manufacturing Co., Ltd.
- Takashi Kamikubo
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Magnetic recording medium having a backcoat layer containing carbon...
- Patent number 5,637,405
- Issue date Jun 10, 1997
- Toyo Ink Manufacturing Co. Ltd.
- Yoshio Hara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having a backcoat layer containing a tran...
- Patent number 5,601,914
- Issue date Feb 11, 1997
- Toyo Ink Manufacturing Co., Ltd.
- Michio Yabuno
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Electron beam irradiation process and an object irradiated with an...
- Publication number 20020139939
- Publication date Oct 3, 2002
- Toyo Ink Manufacturing Co., Ltd.
- Michio Takayama
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING