Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7841001 | Authentication information management method for device embedded with microprocessor unit | Hidenobu Taniguchi | 2010-11-23 |
| 7840804 | Attribute certificate validation method and device | Yutaka Tagawa | 2010-11-23 |
| 6702958 | Electroluminescent phosphor and electroluminescent element therewith | Toshifumi Takehara, Tsutomu Ishii | 2004-03-09 |
| 6248261 | Electroluminescent phosphor and electroluminescent element using the same | Hirofumi Takemura, Yohe Shimizu, Takeshi Takahara | 2001-06-19 |
| 6042748 | Regenerating method and system for fluorescent material | Kiyoshi Inoue, Tsutomu Ishii, Yoshifumi Chujo | 2000-03-28 |
| 4806822 | Cathode ray tube containing zinc silicate phosphor | Takeshi Takahara, Tsutomu Ishii | 1989-02-21 |
| 4804882 | Cathode-ray tube including a white phosphor screen | Takeshi Takahara, Yoshinori Tetsuishi, Kazuaki Higuchi, Masaaki Tamatani | 1989-02-14 |
| 4772818 | Cathode ray tube with pigment-doped phosphor | Norio Koike, Takeo Itou, Hidemi Matsuda | 1988-09-20 |
| 4287229 | Method for surface treatment of phosphor particles | Minoru Watanabe, Toshio Nishimura, Masao Asada, Masao Tezuka, Tsurahide Cho | 1981-09-01 |
| 4208299 | Method of preparing zinc sulfide phosphor coactivated with copper and gold | Susumu Matsuura | 1980-06-17 |