Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664251 | Method of making an aperture plate for a multibeam pattern drawing apparatus | Koichi Maruyama, Tetsuya Nakamura, Takashi Okuyama, Tamihiro Miyoshi, Shinichi Suzuki | 1997-09-02 |
| 5651598 | Projector | Kazushi Yoshida, Yasuyuki Tejima, Ryota Ogawa | 1997-07-29 |
| 5629799 | Chromatic aberration correcting element and its application | Koichi Maruyama, Masahiro Oono, Masato Noguchi, Tsuyoshi Ishikawa | 1997-05-13 |