Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422994 | Fluorescent diagnostic system and method providing color discrimination enhancement | Mamoru Kaneko, Hitoshi Ueno, Sakae Takehana, Isami Hirao, Nobuyuki Doguchi +6 more | 2002-07-23 |
| 6254264 | Lighting system for light guides | Yutaka Koshikawa, Takayuki Suzuki, Akira Hasegawa | 2001-07-03 |
| 6217510 | Endoscopes and endoscope devices which image regular observation images and fluorescent images as well as which provide easier operation of treatment tools | Takeshi Ozawa, Hitoshi Ueno, Sakae Takahana, Nobuyuki Doguchi, Isami Hirao +6 more | 2001-04-17 |
| 6142659 | Optical illumination device | Takayuki Suzuki, Yumi Ikeda, Akira Hasegawa | 2000-11-07 |
| 6139175 | Light source for endoscopes, having different numerical-aperture light collection system | Akira Hasegawa, Takayuki Suzuki, Yumi Ikeda | 2000-10-31 |
| 6124883 | TV observation system for endoscopes | Takayuki Suzuki, Yumi Ikeda, Akira Hasegawa, Mitsujiro Konno, Shinya Matsumoto | 2000-09-26 |
| 6086531 | Light source device for endoscopes | Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki | 2000-07-11 |
| 6036343 | Illumination system for endoscopes | Sayaka Koga | 2000-03-14 |
| 6022123 | Light source device | Akira Hasegawa, Takayuki Suzuki, Yumi Ikeda | 2000-02-08 |
| 5993037 | Light source device for endoscopes | Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki | 1999-11-30 |
| 5984189 | Sheet for data codes and method of recognizing these codes | — | 1999-11-16 |
| 5971576 | Light source device for endoscopes | Akira Hasegawa, Takayuki Suzuki, Yumi Ikeda | 1999-10-26 |
| 5933282 | Vari-focal image pickup optical system for endoscopes | Susumu Aruga | 1999-08-03 |
| 5918974 | Optical illumination device | Takayuki Suzuki, Yumi Ikeda, Akira Hasegawa | 1999-07-06 |
| 5823943 | Light source device for endoscopes | Akira Hasegawa, Shinya Matsumoto, Takayuki Suzuki | 1998-10-20 |
| 5507527 | Two dimensional code for processing data | Masayuki Matsuda | 1996-04-16 |
| 5355001 | Method for recording data, and printed body printed by the method, and data recording medium, and method for reading data from data recording the medium | Takeo Fujimoto, Yoshiyuki Itoh | 1994-10-11 |