Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12200483 | Control apparatus, radio communication system, control method, and recording medium having recorded program | Hideaki Tsuoka, Tetsuo Yama | 2025-01-14 |
| 12063500 | Control apparatus, radio communication system, control method, and program | Tetsuo Yama, Hideaki Tsuoka | 2024-08-13 |
| 9319432 | Information processor, information processing method and non-transitory storage medium storing information processing program | — | 2016-04-19 |
| 9065889 | Telephone relay apparatus, telephone relay method, and program | — | 2015-06-23 |
| 8712028 | Telephone relaying apparatus, telephone relaying method, and program | — | 2014-04-29 |
| 8705717 | Telephone relaying apparatus, telephone relaying method, and program | — | 2014-04-22 |
| 8654938 | Relay processing device, communication terminal, relay processing system, relay processing method, and program | — | 2014-02-18 |
| 8588390 | Telephone conversation relay server, voice telephone conversation system, and voice telephone conversation relay method | — | 2013-11-19 |
| 8577010 | Telephone relay device, method of relaying telephones, and program therefor | Toru Kaji | 2013-11-05 |
| 8401162 | Telephone relay system, telephone relay apparatus and telephone relay method | Kazuhiro Sakata | 2013-03-19 |
| 8306206 | Callback system, transmitting terminal, telephone relay server, callback method and callback program | Masato Yoshikawa | 2012-11-06 |
| 7965831 | Telephone control device, telephone control method, telephone control program, telephone terminal, telephone calling method, telephone calling program and telephone control system | Kazuhiro Sakata | 2011-06-21 |
| 7650155 | Transmission time difference measurement method and system | Junichi Matsuda | 2010-01-19 |
| 7567800 | Content delivery system | Akira Uematsu, Kazuhiro Sakata, Shigehiro Ichimura | 2009-07-28 |
| 7079950 | Location information conversion device, control method therefor, location information providing system using them, and control method therefor | Kazuhiro Sakata | 2006-07-18 |
| 6694350 | Information providing system, server, client, information providing method and recording medium | Shigeru Tagashira | 2004-02-17 |
| 6173314 | Application sharing system with user managed address for conferencing | Shigeru Tagashira | 2001-01-09 |
| 6029191 | Application sharing system which can dynamically change an operating condition of an application program of each terminal from a sole-mode to a share-mode and vice versa | — | 2000-02-22 |
| 5764904 | Application sharing system with communication and application separated from each other | — | 1998-06-09 |