Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11973884 | Anonymous signature system, signature generation apparatus, anonymous signature generation apparatus, verification apparatus, anonymous signature method and program | — | 2024-04-30 |
| 11909867 | Key exchange system, method and program for generating a shared key for secure communication | Junichi TOMIDA, Akira Nagai | 2024-02-20 |
| 11902428 | Key exchange system, communication apparatus, key exchange method and program | Junichi TOMIDA, Akira Nagai, Atsushi Fujioka, Koutarou Suzuki | 2024-02-13 |
| 7580980 | Email system restoring recipient identifier based on identifier-for-disclosure for establishing communication between sender and recipient | Masahisa Kawashima, Akiko Fujimura, Shingo Kinoshita, Masayoshi Nakao, Noriaki Saito +4 more | 2009-08-25 |
| 6937728 | Verifiable anonymous channel | Masayuki Abe, Miyako Ohkubo, Atsushi Fujioka | 2005-08-30 |
| 6614164 | CRT with neck and stem weld and method for manufacturing the same | Hisakazu Okamoto, Shigeru Sugawara | 2003-09-02 |
| 6462466 | Color cathode ray tube with small neck diameter and large stem pin circle having sufficient number of conductive lead pin segments | Shigeru Sugawara, Hiroyuki Koba, Hidenori Takata, Masatoshi Ichikawa | 2002-10-08 |
| 6430588 | Apparatus and method for elliptic-curve multiplication and recording medium having recorded thereon a program for implementing the method | Tetsutaro Kobayashi, Hikaru Morita, Kunio Kobayashi | 2002-08-06 |
| 6313575 | Color picture tube | Junichi Kimiya, Shigeru Sugawara | 2001-11-06 |
| 6236152 | Color cathode ray tube with inline electron gun with variable distances of side beam passing holes from the central beam passing axis | Junichi Kimiya, Shigeru Sugawara | 2001-05-22 |