Kawasumi; Toshimitsu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kawasumi; Toshimitsu.The latest application filed is for "aqueous ball point ink composition".
- Kawasumi; Toshimitsu - Toyonaka JP
- Kawasumi; Toshimitsu - Osaka JP
| Patent | Date |
|---|---|
| Aqueous ball point ink composition Grant 5,712,328 - Inoue , et al. January 27, 1 | 1998-01-27 |
| Aqueous ink compositions and methods for their production Grant 5,683,500 - Kawasumi , et al. November 4, 1 | 1997-11-04 |
| Aqueous ink composition Grant 5,547,499 - Kawasumi , et al. August 20, 1 | 1996-08-20 |
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