Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215809 | Signature panel and process for producing the same | Hidehiko Hoso, Takeo Kato, Takao Kondou | 1993-06-01 |
| 4392265 | Method of modifying the dye affinity of cellulose fiber-containing structure with benzene sulfonyl chloride | Masao Nakajima, Shigeru Okano | 1983-07-12 |
| 4286958 | Method of dyeing cellulose fiber-containing structures | Masao Nakajima, Shigeru Okano | 1981-09-01 |