Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5844638 | Light source apparatus using a cone-shaped element and an applied apparatus thereof | Yoshiharu Ooi, Shigeyuki Serizawa, Yoshiyuki Sonda | 1998-12-01 |
| 5798805 | Projection type display apparatus | Yoshiharu Ooi | 1998-08-25 |
| 5754260 | Projection type color liquid crystal optical apparatus | Yoshiharu Ooi, Shigeyuki Serizawa, Yoshiyuki Sonda, Masaya Kunigita, Yoshinori Hirai | 1998-05-19 |
| 5659409 | Light source apparatus using a cone-like material and an applied apparatus thereof | Yoshiharu Ooi, Shigeyuki Serizawa, Yoshiyuki Sonda | 1997-08-19 |
| 5648860 | Projection type color liquid crystal optical apparatus | Yoshiharu Ooi, Shigeyuki Serizawa, Yoshiyuki Sonda, Masaya Kunigita, Yoshinori Hirai | 1997-07-15 |
| 5645939 | Surface-treated substrate | Takashige Yoneda, Yukiko Takano | 1997-07-08 |
| 5482768 | Surface-treated substrate and process for its production | Takeshi Kawasato, Kazuya Hiratsuka, Takashige Yoneda, Fumiaki Gunji | 1996-01-09 |
| 5464704 | Surface-treated substrate | Takashige Yoneda, Yukiko Takano | 1995-11-07 |
| 5331446 | Liquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystal | Yoshinori Hirai, Hiroshi Kumai, Takehiko Nishiyama, Satoshi Niiyama | 1994-07-19 |
| 5314731 | Surface-treated substrate | Takashige Yoneda, Yukiko Takano | 1994-05-24 |
| 5283675 | Liquid crystal display element with electrode having concave-convex surface at liquid crystal side | Yoshiharu Ooi, Yoshinori Hirai, Satoshi Niiyama | 1994-02-01 |
| 4463162 | Polynuclear fused aromatic ring type polymer and preparation thereof | Sumitaka Nogami, Eiichi Oono, Yoshiharu Kitahama, Isamu Iwami | 1984-07-31 |
| 4226908 | Water repellent inorganic foam and method for producing the same | Akira Yoshino, Isamu Iwami | 1980-10-07 |