Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6515158 | Toner for developing electrostatic latent image, charge control agent for use in the toner, and process for preparing the charge control agent | Hirofumi Iemura, Koichi Ogawa | 2003-02-04 |
| 6395843 | Electrostatic image developing toner | Hiroshi Maekawa, Kazuo Hisamatsu, Yuji Emura, Koichi Ogawa | 2002-05-28 |
| 6284423 | Electrostatic image developing toner | Hiroshi Maekawa, Kazuo Hisamatsu, Yuji Emura, Koichi Ogawa | 2001-09-04 |
| 6261731 | Toner for developing electrostatic latent image | Hirofumi Iemura, Koichi Ogawa | 2001-07-17 |
| 5206811 | Navigation system for automotive vehicle | Toshiyuki Itoh, Hiroshi Tsuda, Kiyomichi Yamada, Kouichi Ide | 1993-04-27 |
| 5151862 | Vehicular traveling direction measuring system | Okihiko Nakayama, Hiroshi Tsuda, Toshiyuki Itoh, Hiroshi Ueno | 1992-09-29 |
| 4899285 | System and method for measuring a position of a moving object with a hybrid navigation apparatus | Okihiko Nakayama, Toshiyuki Itoh | 1990-02-06 |