Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231652 | Aqueous ink compositions and ink-jet printing method using the same | Masayuki Koyano, Akio Kojima, Kiyofumi Nagai, Masato Igarashi, Akiko Konishi +2 more | 2001-05-15 |
| 6013064 | Multi-layer sanitary napkin | — | 2000-01-11 |
| 5972082 | Aqueous ink composition and ink-jet printing method using the same | Masayuki Koyano, Akio Kojima, Kiyofumi Nagai, Masato Igarashi, Akiko Konishi +2 more | 1999-10-26 |
| 5750762 | Cyclopentadiene derivative compounds and electrophotographic photoconductor comprising one cyclopentadiene derivative compound | Megumi Kawahara, Masayuki Shoshi, Akio Kojima | 1998-05-12 |
| 5700614 | cyclopentadiene derivative compounds and electrophotographic photoconductor comprising one cyclopentadiene derivative compound | Megumi Kawahara, Masayuki Shoshi, Akio Kojima | 1997-12-23 |