Issued Patents 2005
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974654 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD AND APPARATUS, AND PROCESS CARTRIDGE USING THE PHOTOCONDUCTOR, AND LONG-CHAIN ALKYL GROUP CONTAINING BISPHENOL COMPOUND AND POLYMER MADE THEREFROM | Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka, Michihiko Namba | 2005-12-13 |
| 6939651 | Electrophotographic photoconductor, and process cartridge and electrophotographic apparatus using the same | Hongguo Li, Kazukiyo Nagai, Masaomi Sasaki, Yasuo Suzuki, Nozomu Tamoto +1 more | 2005-09-06 |
| 6940975 | Encryption/decryption apparatus, encryption/decryption method, and program storage medium therefor | Fumihiko Sano | 2005-09-06 |
| 6919419 | AROMATIC BLOCK POLYCARBONATE RESIN, DIPHENOL COMPOUND FOR PREPARATION OF THE POLYCARBONATE RESIN, ELECTRO-PHOTOGRAPHIC PHOTOCONDUCTOR, ELECTRO-PHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS, AND PROCESS CARTRIDGE | Kohkoku Ri, Masaomi Sasaki, Kazukiyo Nagai, Susumu Suzuka, Katsuhiro Morooka | 2005-07-19 |
| 6891950 | Extended key generator, encryption/decryption unit, extended key generation method, and storage medium | Motoji Oomori, Kaoru Yokota, Tsutomu Sekibe, Makoto Tatebayashi, Fumihiko Sano | 2005-05-10 |
| 6869913 | Pyridazin-3-one derivatives, their use and intermediates for their production | Tadashi Katayama, Yuzuru Sanemitsu, Yoko Mine | 2005-03-22 |
| 6842523 | Encryption apparatus, cryptographic communication system, key recovery system, and storage medium | Akito Niwa, Megumi Aoki, Toshiaki Saisho, Tatsuya Ishihara, Fumihiko Sano +1 more | 2005-01-11 |