Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5861108 | Naphthalene compound, and liquid crystal composition and liquid crystal element using the same | Tsutomu Ishida, Atsuo Otsuji, Yoshiyuki Totani, Hiroe Kayashima, Masakatsu Nakatsuka | 1999-01-19 |
| 5770108 | Pyrimidine compound and liquid crystal composition and liquid crystal element using the same | Yoshiyuki Totani, Atsuo Otsuji, Tsutomu Ishida, Hiroe Kayashima, Masakatsu Nakatsuka | 1998-06-23 |
| 5426170 | Method for preparing an aromatic polycarbonate | Yoshiyuki Totani, Tomonori Ito, Masakatsu Nakatsuka, Akihiro Yamaguchi | 1995-06-20 |
| 5380814 | Aromatic polycarbonate and process for production thereof | Yoshiyuki Totani, Tomonori Ito, Masakatsu Nakatsuka, Akihiro Yamaguchi | 1995-01-10 |
| 5359117 | Processes for producing aromatic polycarbonate oligomer and aromatic polycarbonate | Yoshiyuki Totani, Tomonori Ito, Masakatsu Nakatsuka, Akihiro Yamaguchi, Ken-ichi Goto +4 more | 1994-10-25 |