Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217793 | Acetylene compound, liquid crystal composition and liquid crystal element | Yoshiyuki Totani, Tsutomu Ishida, Masakatsu Nakatsuka | 2001-04-17 |
| 5861108 | Naphthalene compound, and liquid crystal composition and liquid crystal element using the same | Tsutomu Ishida, Atsuo Otsuji, Yoshiyuki Totani, Motokazu Hirao, Masakatsu Nakatsuka | 1999-01-19 |
| 5770108 | Pyrimidine compound and liquid crystal composition and liquid crystal element using the same | Yoshiyuki Totani, Motokazu Hirao, Atsuo Otsuji, Tsutomu Ishida, Masakatsu Nakatsuka | 1998-06-23 |