HK

Hitoshi Karasawa

OC Olympus Optical Co.: 26 patents #64 of 2,334Top 3%
Honda Motor Co.: 8 patents #2,726 of 21,052Top 15%
OS Olympus Medical Systems: 8 patents #66 of 833Top 8%
OL Olympus: 4 patents #1,098 of 3,097Top 40%
SC Sumitomo Coal Mining Co.: 2 patents #2 of 13Top 20%
Overall (All Time): #56,813 of 4,157,543Top 2%
49
Patents All Time

Issued Patents All Time

Showing 26–49 of 49 patents

Patent #TitleCo-InventorsDate
5688235 Ultrasonic treatment apparatus Tomohisa Sakurai, Hideo Nagazumi, Kazuya Hijii, Toshihiko Suzuta, Masahiro Kudo +7 more 1997-11-18
5620575 Composite plating apparatus and apparatus for dispersing air bubbles within a composite plating solution Hiroyuki Nomura, Hisayuki Sakurai 1997-04-15
5588948 Stereoscopic endoscope Susumu Takahashi, Masao Uehara, Shingo Kato, Atsushi Kidawara, Katsuyuki Saito +15 more 1996-12-31
5577991 Three-dimensional vision endoscope with position adjustment means for imaging device and visual field mask Nobuaki Akui, Satoshi Honma, Iwao Kanamori, Susumu Takahashi, Toyoharu Hanzawa +8 more 1996-11-26
5575756 Endoscope apparatus Norio Kobayashi, Tatsuya Yamaguchi, Tetsumaru Kubota, Yukio Kawase, Mitsumasa Okada +1 more 1996-11-19
5540829 Composite plating method for hollow member Hiroaki Mase, Osamu Ishigami 1996-07-30
5391144 Ultrasonic treatment apparatus Tomohisa Sakurai, Hideo Nagazumi, Kazuya Hijii, Toshihiko Suzuta, Masahiro Kudo +7 more 1995-02-21
5387190 Probe break detector for an ultrasonic aspirator Masakazu Gotanda, Tatsuya Kubota, Tetsumaru Kubota, Yuichi Ikeda, Toshihiko Hashiguchi +1 more 1995-02-07
5211625 Ultrasonic treatment apparatus Tomohisa Sakurai, Tetsumaru Kubota, Tatsuya Kubota, Hiroaki Kagawa, Yuichi Ikeda +7 more 1993-05-18
5163433 Ultrasound type treatment apparatus Hiroaki Kagawa, Tomohisa Sakurai, Tetsumaru Kubota, Tatsuya Kubota, Yuichi Ikeda +7 more 1992-11-17
5154723 Cerebral surgery apparatus Tetsumaru Kubota, Yuichi Ikeda, Toshihiko Hashiguchi 1992-10-13
5135690 Process for producing cylindrical reinforcing fibrous molding Takeshi Imura, Masaki Sakakibara, Takahiro Suenaga, Shigeo Kaiho, Kanji Murata +4 more 1992-08-04
5076276 Ultrasound type treatment apparatus Tomohisa Sakurai, Tetsumaru Kubota, Tatsuya Kubota, Yuichi Ikeda, Mitsumasa Okada +7 more 1991-12-31
5047043 Resecting device for living organism tissue utilizing ultrasonic vibrations Tetsumaru Kubota, Tatsuo Nagasaki, Koji Taguchi, Hiroyoshi Fujimori, Akio Nakada +8 more 1991-09-10
5042460 Ultrasonic treating apparatus with device for inhibiting drive when ultrasonic element is determined to be defective Tomohisa Sakurai, Masakazu Gotanda, Toshihiko Suzuta, Tatsuya Kubota, Kazuya Hijii +5 more 1991-08-27
4989588 Medical treatment device utilizing ultrasonic wave Tetsumaru Kubota, Akira Shiga, Akio Nakada, Syuichi Takayama, Ryouichi Konou +12 more 1991-02-05
4979952 Ultrasonic vibration treatment apparatus Tatsuya Kubota, Syuichi Takayama, Shinji Hatta, Masakazu Gotanda, Hiroshi Sasaki +2 more 1990-12-25
4961424 Ultrasonic treatment device Tatsuya Kubota, Masakazu Gotanda, Shinji Hatta, Tetsumaru Kubota, Takeaki Nakamura +2 more 1990-10-09
4905082 Rigid video endoscope having a detachable imaging unit Shinichi Nishigaki, Takeaki Nakamura, Minoru Okabe, Hiroyuki Kusnoki, Tadao Hagino +4 more 1990-02-27
4867138 Rigid electronic endoscope Tetsumaru Kubota, Takeaki Nakamura, Minoru Okabe, Hiroyuki Kusunoki, Tadao Hagino +4 more 1989-09-19
4776336 Resectoscope 1988-10-11
4744361 Resectoscope 1988-05-17
4726370 Resectoscope device Tetsumaru Kubota 1988-02-23
4649917 Resectoscope with matching markers and method of assembly 1987-03-17