Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10955398 | Calibration method for gas analysis apparatus, gas analysis system, and pressure varying device | Naoto MIZUTANI, Takeshi Kusaka, Haruhisa Mohara | 2021-03-23 |
| 9604293 | Corrugated tube cutting device and manufacturing method of cut corrugated tube | Kouichi Shibayama | 2017-03-28 |
| 9568411 | Exhaust gas analysis system and exhaust gas analysis program | Ichiro Asano, Kazuo Hanada | 2017-02-14 |
| 9259835 | Cantilevered assembly work conveyor device | Kouichi Shibayama | 2016-02-16 |
| 9188506 | Exhaust gas analysis system and exhaust gas analysis program | Ichiro Asano, Kazuo Hanada | 2015-11-17 |
| 9170180 | Particle number counting apparatus | Yoshinori Otsuki, Kenji Kondo, Kazuo Hanada, Steve Kerrigan | 2015-10-27 |
| 9140631 | Method of measuring characteristics of critical orifice type constant flow rate instrument for use in multistage dilution mechanism | Yoshinori Otsuki, Kazuo Hanada | 2015-09-22 |
| 8794048 | System for determining number of particles | Takashi Matsuyama, Yoshinori Otsuki, Kaoru Okada, Masanobu Akita | 2014-08-05 |
| 8528424 | Exhaust gas analyzing system | Yoshinori Otsuki, Kazuo Hanada | 2013-09-10 |
| 8387447 | Particulate matter measuring device | Kazuo Hanada, Yoshinori Otsuki | 2013-03-05 |
| 8012231 | Particulate matter analyzer, collecting filter and system for analyzing and collecting samples from fluids | Katsumi Saitoh, Junji Kato, Masahiko Fujiwara | 2011-09-06 |
| 7254212 | Particulate matter analyzer, collecting filter and system for analyzing and collecting samples from fluids | Katsumi Saitoh, Junji Kato, Masahiko Fujiwara | 2007-08-07 |
| 7159446 | Particulate matter concentration measuring apparatus | Hiroshi Mizutani | 2007-01-09 |
| 6964190 | Particulate matter concentration measuring apparatus | Hiroshi Mizutani | 2005-11-15 |
| RE38587 | Magnetic recording medium | Isatake Kaitsu, Iwao Okamoto | 2004-09-14 |
| 6740383 | Magnetic recording medium possessing a ratio of Hc(perpendicular) to Hc(horizontal) that is not more than 0.22 and magnetic recording disk device | Kenji Sato, Yuki Yoshida, Iwao Okamoto, Yasuji Ikeda, Kiyoshi Yamaguchi | 2004-05-25 |
| 6229673 | Magnetic head assembly with contact-type head chip mounting and electrically connecting arrangements | Takayuki Yamamoto, Yukio Nakamura, Minoru Takahashi, Yoshiharu Kasamatsu, Masao Hiyane | 2001-05-08 |
| 6071607 | Magnetic recording medium and magnetic disk device | Chiaki Okuyama, Kenji Sato, Iwao Okamoto | 2000-06-06 |
| 6038093 | Magnetic recording/reproducing apparatus with a current supplying circuit for demagnetizing residual magnetization remaining at an end of a magnetic pole | Noboru Takada, Chie Takeda, Hiroaki Wakamatsu, Kenji Sato, Kenichi Aoshima | 2000-03-14 |
| 5963385 | Magnetic recording/reproducing apparatus and method for supplying a current to a magnetic head to stabilize a magnetized state of a magnet pole | Noboru Takada, Chie Takeda, Hiroaki Wakamatsu, Kenji Sato, Kenichi Aoshima | 1999-10-05 |
| 5900323 | Magnetic recording medium and magnetic recording drive | Iwao Okamoto, Hideyuki Akimoto | 1999-05-04 |
| 5774783 | Magnetic recording medium | Isatake Kaitsu, Iwao Okamoto | 1998-06-30 |
| 5726839 | Magnetic head having bypass magnetic path and set magnetic reluctance relationship | Minoru Takahashi, Hiroaki Wakamatsu | 1998-03-10 |
| 4232061 | Magnetic recording medium and process for producing the same | Seizi Hattori, Koichi Makino, Takehiko Nakagawa | 1980-11-04 |