Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8019229 | Apparatus, system, method, and program for visible light communication | — | 2011-09-13 |
| 7742704 | Visible light control apparatus, visible light control circuit, visible light communication apparatus, and visible light control method | Shuuji Suzuki | 2010-06-22 |
| 7151922 | Mobile telephone using subscriber card | Toshiyuki Sashihara | 2006-12-19 |
| 7065551 | Data distribution method, system, and apparatus and recording medium recording method | Kenichi Ariga | 2006-06-20 |
| 6950938 | Service identification tag and communications system using the same | — | 2005-09-27 |
| 6882840 | Communication system capable of reducing communication load | — | 2005-04-19 |
| 6647263 | Automatic call making system and a mobile radio terminal | — | 2003-11-11 |
| 6567674 | Radio information terminal capable of facilitating on-line operation by a portable computer | — | 2003-05-20 |
| 6157827 | Voice mail system | — | 2000-12-05 |
| 6091741 | Radio packet communication system capable of avoiding transmission collision | Yukitsune Furuya | 2000-07-18 |
| 6016567 | Radio broadcast system with improved reception of an NAK code | — | 2000-01-18 |
| 5968123 | Method and device employing location confirmation by a server or a bridge for controlling mobile host position in local area network | Seiji Shimizu | 1999-10-19 |
| 5915211 | Radio conference system and terminal unit therefor | — | 1999-06-22 |
| 5790657 | Echo suppressor capable of suppressing an echo resulting from acoustic coupling without spoiling a natural sound of conversation | — | 1998-08-04 |
| 5553080 | Speech decoding apparatus comprising alarm signal generator operable on deterioration of transmission path quality | — | 1996-09-03 |
| 5353330 | Power conserving mobile telephone usable as a portable phone and as an installed phone | — | 1994-10-04 |
| 5301222 | Portable radio telephone set for generating pattern signals representative of alphanumeric letters indicative of a telephone number | — | 1994-04-05 |
| 5201004 | Speech recognition method with noise reduction and a system therefor | Keiko Shimada | 1993-04-06 |
| 5175511 | Phase-locked loop synthesizer for use in TDM communications system | — | 1992-12-29 |
| 5157271 | Apparatus for controlling a power supply of an electric machine in a vehicle | — | 1992-10-20 |
| 5149985 | Two-battery supply for operating and waiting modes of a carphone | — | 1992-09-22 |
| 5125082 | Management system capable of quickly assigning a terminal endpoint identifier to a terminal equipment unit | — | 1992-06-23 |
| 4999836 | ISDN network termination unit enabling to establish data link between one terminal equipment and other terminal equipments connected to the unit without use of subscriber line | — | 1991-03-12 |
| 4985891 | ISDN system having subscriber line multiplexer with means for establishing different data links through D-channels on subscriber line and high rate transmission line | Yasuo Fukazawa, Takashi Asano | 1991-01-15 |
| 4794649 | Radio communication system with power saving disablement prior to call handling processes | — | 1988-12-27 |