Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9471592 | File management system, method and computer program | Toyoki Yamagishi | 2016-10-18 |
| 9400804 | File management system, method and computer program | Toyoki Yamagishi | 2016-07-26 |
| 8934610 | File management system, method and computer program | Toyoki Yamagishi | 2015-01-13 |
| 7139265 | Packet communication system | — | 2006-11-21 |
| 6639863 | Semiconductor integrated circuit device having link element | Akira Imamura, Yasuhiro Mabuchi | 2003-10-28 |
| 6563815 | Packet communication system | — | 2003-05-13 |
| 6078583 | Communication method and communication system | Keiko Takahara, Tohru Hoshi | 2000-06-20 |
| 5905495 | Communication system using electronic mail | Noriyuki Tanaka, Keiko Takahara, Kazuma Yumoto, Naoko Iwami, Tohru Hoshi +1 more | 1999-05-18 |
| 5758082 | Mail terminal equipment | Kazuma Yumoto, Naoko Iwami, Tohru Hoshi | 1998-05-26 |
| 5654957 | Packet communication system | — | 1997-08-05 |
| 5532652 | Oscillation circuit with enable/disable frequency stabilization | Shinichi Hirose, Hisashi Harada | 1996-07-02 |
| 5434863 | Internetworking apparatus for connecting plural network systems and communication network system composed of plural network systems mutually connected | Katsuyoshi Onishi, Naoya Ikeda, Osamu Takada, Hiromichi Enomoto | 1995-07-18 |
| 5211031 | Scroll type compressor and refrigeration cycle using the same | Akira Murayama, Tadashi Fukuishi, Sigeaki Kuroda, Tadao Ochiai, Toshio Hirai +4 more | 1993-05-18 |
| 4849962 | Communications control unit | Shigeki Morimoto | 1989-07-18 |