Yoshio Midorikawa

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Tokyo, JA

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Patents Grantslast 30 patents

Information Patent Grant
Capillary body and method of producing the same
- Patent number 4,093,769
- Issue date Jun 6, 1978
- Glasrock Products, Inc.
- Yoshio Midorikawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Writing pen core having an integral nib and ink reservoir and metho...
- Patent number 4,086,312
- Issue date Apr 25, 1978
- Glasrock Products, Inc.
- Yoshio Midorikawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES