Yamagata; Masakazu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yamagata; Masakazu.The latest application filed is for "ribbon cassette, ribbon cartridge using ribbon protector, and printer using ribbon cassette and ribbon cartridge".
- Yamagata; Masakazu - Saitama JP
- Yamagata; Masakazu - Fukushima JP
- Yamagata, Masakazu - Fukushima-shi JP
- Yamagata; Masakazu - Tokyo JP
| Patent | Date |
|---|---|
| Integral transmitter-receiver optical communication apparatus and a crosstalk preventive device therefor Grant 6,701,093 - Gotoh , et al. March 2, 2 | 2004-03-02 |
| Ribbon cassette, ribbon cartridge using ribbon protector, and printer using ribbon cassette and ribbon cartridge Grant 6,666,598 - Moriyama , et al. December 23, 2 | 2003-12-23 |
| Integral transmitter-receiver optical communication apparatus Grant 6,384,944 - Takayama , et al. May 7, 2 | 2002-05-07 |
| Ribbon cassette, ribbon cartridge using ribbon protector, and printer using ribbon cassette and ribbon cartridge App 20020051667 - Moriyama, Akihiro ; et al. | 2002-05-02 |
| ND filter Grant 6,078,442 - Tada , et al. June 20, 2 | 2000-06-20 |
| Close-up lens system Grant 4,653,876 - Yamagata March 31, 1 | 1987-03-31 |
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