TH

Toyoharu Hanzawa

OL Olympus: 20 patents #130 of 3,097Top 5%
OC Olympus Optical Co.: 15 patents #172 of 2,334Top 8%
OS Olympus Medical Systems: 2 patents #325 of 833Top 40%
Overall (All Time): #89,076 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
5822114 Stereomicroscope 1998-10-13
5729382 Large exit-pupil stereoscopic microscope Kazuo Morita 1998-03-17
5720706 Stereoscopic endoscope Susumu Takahashi, Masao Uehara, Shingo Kato, Atsushi Kidawara, Katsuyuki Saito +15 more 1998-02-24
5588948 Stereoscopic endoscope Susumu Takahashi, Masao Uehara, Shingo Kato, Atsushi Kidawara, Katsuyuki Saito +15 more 1996-12-31
5579772 Surgical microscope system Masahiko Kinukawa, Masami Hamada, Hiroshi Fujiwara, Takashi Fukaya, Masanori Kaneda +4 more 1996-12-03
5577991 Three-dimensional vision endoscope with position adjustment means for imaging device and visual field mask Nobuaki Akui, Satoshi Honma, Iwao Kanamori, Susumu Takahashi, Takashi Fukaya +8 more 1996-11-26
5552929 Stereomicroscope Takashi Fukaya, Masami Hamada, Shinichi Nakamura, Masahiko Kinukawa, Tomonori Ishikawa +2 more 1996-09-03
5394267 Stereomicroscope 1995-02-28
5341239 Stereomicroscope equipped with eyepiece including variable magnification optical system 1994-08-23
5331457 Stereomicroscope wherein the distance between a pair of beams remains unchanged when the magnification is changed Kimihiko Nishioka, Yoshihiro Kawano, Masaaki Yamagishi 1994-07-19
5227914 Stereomicroscope including a single variable magnification optical system Tomonori Ishikawa, Shinichi Nakamura, Hiroshi Fujiwara, Masahiko Kinukawa, Kimihiko Nishioka +5 more 1993-07-13
5142409 Objective lens system Yoshiharu Saito 1992-08-25