Hajime Tatsuzawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Inkjet printers
- Patent number 6,209,986
- Issue date Apr 3, 2001
- Mutoh Industries Ltd.
- Hajime Tatsuzawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Universal parallel ruler device
- Patent number 4,151,649
- Issue date May 1, 1979
- Mutoh Industry, Ltd.
- Hajime Tatsuzawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES