Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10656424 | Information display terminal, information display system, and information display method | Susumu Yoshida, Satoshi Ouchi, Tadashi Kuwabara, Yoshiho Seo | 2020-05-19 |
| 10386637 | Information display terminal, information display system, and information display method | Susumu Yoshida, Satoshi Ouchi, Tadashi Kuwabara, Yoshiho Seo | 2019-08-20 |
| 8284644 | Optical disc apparatus switching focus point between layers | Yoshinori Ishikawa | 2012-10-09 |
| 7876654 | Optical disk drive control circuit | — | 2011-01-25 |
| 7848190 | Optical disc apparatus switching focus point between layers | Yoshinori Ishikawa | 2010-12-07 |
| 7471597 | Optical disc apparatus switching focus point between layers | Yoshinori Ishikawa | 2008-12-30 |
| 7212472 | Focus point switching | Yoshinori Ishikawa | 2007-05-01 |
| 7209631 | Image recording/reproducing apparatus | Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima | 2007-04-24 |
| 7200075 | Optical disc apparatus switching focus point between layers | Yoshinori Ishikawa | 2007-04-03 |
| 7151722 | Optical disc apparatus switching focus point between layers | Yoshinori Ishikawa | 2006-12-19 |
| 7111133 | Control apparatus for selectively operating with program data from two memories and having a system controller supplying program data and address for writing the data to the second memory | Yoshinori Ishikawa, Masato Soma, Dan Aoki | 2006-09-19 |
| 7106666 | Optical disk apparatus and method capable of compensating for instability track jump and focus jump | Yoshinori Ishikawa, Motoyuki Suzuki | 2006-09-12 |
| 6895393 | Electronic book distributing system by use of purchase certificate and devices therefor | Toru Numata, Tadashi Kuwabara, Hiroshi Shimizu, Misuzu Mochizuki, Naoki Yamamoto +6 more | 2005-05-17 |
| 6865141 | Optical disc apparatus switching focus point between layers | Yoshinori Ishikawa | 2005-03-08 |
| 6665237 | Control apparatus and optical disc apparatus using it | Yoshinori Ishikawa, Masato Soma, Dan Aoki | 2003-12-16 |
| 6275646 | Image recording/reproducing apparatus | Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima | 2001-08-14 |
| 6158682 | Tape running apparatus | Masayuki Kijima, Hideo Nishijima, Kaneyuki Okamoto, Takeo Ohkouchi | 2000-12-12 |
| 6089485 | Apparatus or method for controlling tape speed | Masayuki Kijima, Hideo Nishijima, Kaneyuki Okamoto, Takeo Ohkouchi | 2000-07-18 |
| 6002831 | Image recording/reproducing apparatus | Hideo Nishijima, Kaneyuki Okamoto, Masayuki Kijima | 1999-12-14 |
| 5839683 | Apparatus for controlling tape speed | Masayuki Kijima, Hideo Nishijima, Kaneyuki Okamoto, Takeo Ohkouchi | 1998-11-24 |
| 5617266 | Motor stabilizing control apparatus for use with motors, including for use with a drum motor in a magnetic tape system | Kouji Kaniwa, Kouji Minabe, Hiroya Abe, Yoshio Narita | 1997-04-01 |
| 5170249 | Digital signal processing apparatus having devices for delaying and combining color signals | Hiroyasu Ohtsubo, Masaru Noda, Michio Masuda | 1992-12-08 |