Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7085397 | Unfair contents appropriation detection system, computer program and storage medium | Katsumi Ikegami | 2006-08-01 |
| 6798831 | Testing system | — | 2004-09-28 |
| 6618450 | Receiving apparatus and receiving method | — | 2003-09-09 |
| 6087869 | Digital PLL circuit | Syouji Ohishi, Masaya Tamamura | 2000-07-11 |
| 5859551 | Digital PLL circuit | Syouji Ohishi, Masaya Tamamura | 1999-01-12 |
| 5822557 | Pipelined data processing device having improved hardware control over an arithmetic operations unit | Seiji Suetake, Hideyuki Iino, Tatsuya Nagasawa | 1998-10-13 |
| 5778010 | Method and device for correcting packet data error and packet receiver | — | 1998-07-07 |
| 5742839 | Coprocessor for performing an arithmetic operation by automatically reading data from an external memory | Seiji Suetake, Hideyuki Iino, Tatsuya Nagasawa | 1998-04-21 |
| 5742842 | Data processing apparatus for executing a vector operation under control of a master processor | Seiji Suetake, Hideyuki Iino, Tatsuya Nagasawa, Koichi Kuroiwa, Hiroyuki Fujiyama +4 more | 1998-04-21 |
| 5515520 | Data processing system for single-precision and double-precision data | Koichi Kuroiwa | 1996-05-07 |
| 5508948 | Numeric representation converting apparatus and vector processor unit such apparatus | — | 1996-04-16 |
| 5115508 | Password system utilizing two password types, the first being changeable after entry, the second being unchangeable until power is removed | — | 1992-05-19 |
| 4864530 | Display system for a compact electronic apparatus | Akira Natsuhara | 1989-09-05 |
| 4796215 | Programmable calculator with external memory module and protection against erroneous erasure of data in the module | — | 1989-01-03 |
| 4780825 | Text compiling device | — | 1988-10-25 |
| 4695983 | Calculator or pocket computer with selectable operational sequence | Koichi Oda, Toshihiko Sumitani | 1987-09-22 |
| 4618927 | Electronic game apparatus | — | 1986-10-21 |
| 4609918 | Graph-drawing machine | Yasuhiro Nakanishi | 1986-09-02 |
| 4589779 | Multi-alarm timepiece with simplified operating means | Yutaka Ikemoto | 1986-05-20 |
| 4569029 | Check calculator | Kenichiro Komeda | 1986-02-04 |
| 4528638 | Shopping calculator with comparison feature | Kenichiro Komeda | 1985-07-09 |
| 4340375 | Electronic learning aid | Takashi Sakaue, Megumi Fukusaki, Yoshiro Kataoka | 1982-07-20 |