Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657967 | Dummy bit elimination device and coding apparatus for FEC code word | Takanori Fujisawa, Kenichi Nomura, Norio Yanagi, Hiroaki Tanaka | 2003-12-02 |
| 6465676 | Aminopolycarboxylates, process for producing the same and use thereof | Masahiro Aoki | 2002-10-15 |
| 6081357 | Optical communication network system with wavelength-based signal distribution | — | 2000-06-27 |
| 5822474 | Optical branching apparatus and transmission line setting method therefor | — | 1998-10-13 |
| 5723800 | Wear resistant cermet alloy vane for alternate flon | Takashi Yoshimoto, Hirokuni Amano, Masao Koshi | 1998-03-03 |
| 5640959 | Ultrasonic diagnostic apparatus | Kazuhiro Watanabe, Atsuo Iida | 1997-06-24 |
| 5542426 | Method of fabricating ultrasonic probe | Kazuhiro Watanabe | 1996-08-06 |
| 5350964 | Ultrasonic transducer and method of manufacturing the same | Kazuhiro Watanabe, Hiroshi Ishikawa, Kiyoto Matsui, Kenji Kawabe, Takaki Shimura | 1994-09-27 |
| 5321160 | Process for producing an ethylenamine | Toshio Hironaka, Noritaka Nagasaki | 1994-06-14 |
| 5250869 | Ultrasonic transducer | Hiroshi Ishikawa, Kazuhiro Watanabe, Kiyoto Matsui, Kenji Kawabe, Takaki Shimura | 1993-10-05 |
| 5248827 | Process for producing an ethylenamine | Toshio Hironaka, Noritaka Nagasaki, Nobuyuki Kanai, Nobumasa Suzuki, Yukio Ito +1 more | 1993-09-28 |
| 5174296 | Ultrasonic probe having a piezoelectrical element | Kazuhiro Watanabe, Kenichi Hayakawa, Hiroshi Ishikawa, Kiyoto Matsui, Kenji Kawabe +1 more | 1992-12-29 |
| 5167234 | Ultrasonic probe having rotary refracting member | Kazuhiro Watanabe, Kenichi Hayakawa, Hiroshi Ishikawa, Kiyoto Matsui, Kenji Kawabe +1 more | 1992-12-01 |
| 5149877 | Process for producing alkylenamine | Yukio Ito, Kazuhiko Sekizawa | 1992-09-22 |
| 5115810 | Ultrasonic transducer array | Kazuhiro Watanabe, Atsuo Iida, Takaki Shimura, Kiyoto Matsui, Hiroshi Ishikawa +1 more | 1992-05-26 |
| 5073649 | Process for producing a polyalkylene polyamine | Nobumasa Suzuki, Yukio Ito, Kazuhiko Sekizawa | 1991-12-17 |
| 4982003 | Mixed oxide catalyst and process for producing an alkylenamine by using the catalyst | Nobumasa Suzuki, Yukio Ito, Kazuhiko Sekizawa | 1991-01-01 |
| 4906782 | Process for preparation of alkyleneamines | Sadakatsu Kumoi, Yukihiro Tsutsumi | 1990-03-06 |