Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6051513 | Minute structure for showing colors by reflection and interference of natural light | Kinya Kumazawa, Hiroshi Tabata | 2000-04-18 |
| 5849383 | Minute structure for showing colors by reflection and interference of natural light | Kinya Kumazawa, Hiroshi Tabata | 1998-12-15 |
| 5620071 | Electrically controlled force transmitting method and electrically controlled force transmitting apparatus | Masazumi Ishikawa, Katsunori Aoki, Yasuhiko Ohsawa, Keishi Negita, Hiroshi Takao | 1997-04-15 |
| 5472798 | Coloring structure having reflecting and interfering functions | Kinya Kumazawa, Hiroshi Tabata | 1995-12-05 |
| 5407738 | Minute structure for showing colors by reflection and interference of natural light | Hiroshi Tabata, Kinya Kumazawa | 1995-04-18 |