Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11879687 | Method of designing heat exchanger group and processing plant | Satoru Kanazawa, Masaki Ikeda | 2024-01-23 |
| 7440770 | Portable information input apparatus | — | 2008-10-21 |
| 6909906 | Portable information input apparatus | — | 2005-06-21 |
| 6731912 | Portable telephone | — | 2004-05-04 |
| 6327482 | Mobile radio apparatus with auxiliary display screen | — | 2001-12-04 |
| 6244894 | Cellular phone battery equipped with IC card | — | 2001-06-12 |
| 5838280 | Microstrip type antenna having small size and capable of changing gain | — | 1998-11-17 |
| 5790960 | Battery pack for use with one of plural radio systems | — | 1998-08-04 |
| 5727030 | Automatic frequency control circuit applicable to a mobile communication system | — | 1998-03-10 |
| 5586182 | Portable telephone set | — | 1996-12-17 |
| 5535249 | Precise detection of frequency error for bursts modulated by predetermined symbol sequence | — | 1996-07-09 |