TO

Toshiaki Okumura

Canon: 16 patents #4,160 of 19,416Top 25%
Sumitomo Electric Industries: 9 patents #3,076 of 21,551Top 15%
KS Kobe Steel: 5 patents #205 of 2,031Top 15%
NC Nagano Keiki Co.: 2 patents #33 of 97Top 35%
HL Hitachi Shipbuilding & Engineering Company Limited: 1 patents #37 of 117Top 35%
Overall (All Time): #103,113 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
10849577 Radiation imaging apparatus and radiation imaging system 2020-12-01
10476259 Power conversion device and method for determining operational state of breaking device Naoki Ayai, Koichi Takeshita, Fumio Urakawa, Shinjirou Shinada, Tadatsugu Udono 2019-11-12
10461625 Power conversion device and control method for same Naoki Ayai 2019-10-29
10355620 Conversion device Naoki Ayai, Tetsuo Akita, Kenji Abiru 2019-07-16
10348190 Conversion device for converting voltage in a non-insulated manner and method for controlling the same Yusuke Shimizu, Tetsuo Akita, Naoki Ayai 2019-07-09
10277036 Inverter device Naoki Ayai, Kenji Abiru 2019-04-30
10193434 Power conversion device and three-phase AC power supply device Naoki Ayai 2019-01-29
9882508 High-frequency switching type conversion device Naoki Ayai, Tetsuo Akita, Kenji Abiru 2018-01-30
9831676 Power conversion device and three-phase AC power supply device Naoki Ayai 2017-11-28
9627995 Inverter device with a control unit Naoki Ayai, Kenji Abiru 2017-04-18
9125597 Ophthalmologic apparatus, and ophthalmologic method and program Yasuhiro Dobashi, Koichi Ohta 2015-09-08
8944599 Ophthalmologic apparatus, and ophthalmologic control method and program Koichi Ohta 2015-02-03
8596784 Opthalmology photographing apparatus Yasuhiro Dobashi, Yasuhiro Nakahara, Hiroshi Aoki 2013-12-03
8092022 Opthalmology photographing apparatus Yasuhiro Dobashi, Yasuhiro Nakahara, Hiroshi Aoki 2012-01-10
7905598 Ophthalmologic photographing apparatus Nobuyoshi Kishida, Hajime Nakajima 2011-03-15
7794084 Eye fundus camera Toshifumi Masaki, Shinya Tanaka 2010-09-14
6474170 Pressure sensor Kouzou Yamagishi, Kunihiro Yamaura, Takayuki Yokoyama, Kenji Kobayashi 2002-11-05
6332683 Fundus examination apparatus Shigeaki Ono, Shinya Tanaka 2001-12-25
6324420 Blood vessel tracking apparatus Nobuyoshi Kishida, Yasuyuki Numajiri, Tomoyuki Iwanaga 2001-11-27
6298730 Pressure sensor Kouzou Yamagishi, Yoji Serizawa, Haruhiko Sekiya, Takayuki Yokoyama, Yasutaka Ide +4 more 2001-10-09
6291064 Fiber reinforced thermoplastic resin molded product having a good surface appearance Ryosaku Kadowaki, Koichi Hashimoto, Toshihiro Asai 2001-09-18
6193372 Ophthalmologic apparatus Hiroshi Itoh 2001-02-27
6192269 Ophthalmological measurement apparatus Shinya Tanaka, Yasuyuki Numajiri, Shigeaki Ono, Tomoyuki Iwanaga 2001-02-20
5894337 Eye fundus examining apparatus Satoru Okinishi, Shinya Tanaka, Yasuyuki Numajiri, Shigeaki Ono, Hiroshi Itoh +1 more 1999-04-13
5751396 Ophthalmic apparatus including ocular fundus illuminating system for illuminating the fundus of the eye to be examined through the pupil thereof Takashi Masuda, Kyoji Sekiguchi, Hiroshi Aoki, Osamu Yamamoto 1998-05-12