Isao Tanaka

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-layered anti-coking heat resistant metal tube and method for...
- Patent number 6,579,628
- Issue date Jun 17, 2003
- Daido Tokushuko Kabushiki Kaisha
- Yuko Takeuchi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Writing pen with space behind nib
- Patent number 4,496,258
- Issue date Jan 29, 1985
- Pilot Ink Co., Ltd.
- Isao Tanaka
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Multi-layered anti-coking heat resistant metal tube and method for...
- Publication number 20020011467
- Publication date Jan 31, 2002
- Yuko Takeuchi
- F28 - HEAT EXCHANGE IN GENERAL