Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
FO

Fumio Ohtomo

TOTopcon: 227 patents #1 of 684Top 1%
TKTokyo Kogaku Kikai: 16 patents #1 of 143Top 1%
Kabushiki Kaisha Toshiba: 8 patents #3,802 of 21,451Top 20%
KKKabushiki Kaisha Tokyo Kikai: 1 patents #6 of 20Top 30%
KTKabushiki Kaisha Top: 1 patents #53 of 213Top 25%
TOToshiba: 1 patents #1,121 of 2,688Top 45%
Asaka, JP: #1 of 378 inventorsTop 1%
Overall (All Time): #1,853 of 4,157,543Top 1%
258 Patents All Time

Issued Patents All Time

Showing 126–150 of 258 patents

Patent #TitleCo-InventorsDate
6859269 Surveying instrument and method for acquiring image data by using the surveying instrument Hitoshi Otani, Makoto Omori 2005-02-22
6796040 Line laser device Jun-ichi Kodaira 2004-09-28
6756581 Deviation detecting device, rotary laser apparatus with the same, and position determining system with deviation detecting/correcting device Jun-ichi Kodaira 2004-06-29
6734412 Position detection device Kaoru Kumagai 2004-05-11
6710319 System for radiating a reference laser beam and utilizing GPS units for installing an article Satoshi Hirano, Ray O'Connor, Kunihiro Hayashi 2004-03-23
6687038 Optical pulse observing device Masahiro Ohishi 2004-02-03
6679609 Laser beam irradiation device Jun-ichi Kodaira 2004-01-20
6675489 Laser sighting device Jun-ichi Kodaira 2004-01-13
6649927 Tilt detecting device Jun-ichi Kodaira 2003-11-18
6646732 Position determination and adjustment system and light sensing device used for the same Kunihiro Hayashi, Jun-ichi Kodaira, Kazuki Osaragi 2003-11-11
6573981 Electronic level Kaoru Kumagai 2003-06-03
6563574 Surveying apparatus Kiwami Horiguchi, Hitoshi Ohtani 2003-05-13
6493067 Rotary laser irradiating system Jun-ichi Kodaira 2002-12-10
6483106 Rotary laser irradiating system and object reflector for the same Jun-ichi Kodaira 2002-11-19
6473714 Inclination measuring apparatus Kaoru Kumagai, Masayuki Nishi 2002-10-29
6453569 Surveying instrument and plumbing device for plumbing surveying instrument Kaoru Kumagai 2002-09-24
6450267 Construction equipment control system Kazuaki Kimura 2002-09-17
6443235 Rotary laser irradiating apparatus and construction machine control system Kunihiro Hayashi 2002-09-03
6445446 Surveying instrument Kaoru Kumagai 2002-09-03
6437859 Device for detecting optical position Akio Kimura, Ryo-uji Musashi, Ikuo Ishinabe 2002-08-20
6435283 Rotary laser irradiating apparatus and construction machine control system Kunihiro Hayashi 2002-08-20
6396571 Portable type distance measuring apparatus Masahiro Ohishi 2002-05-28
6356344 Mixing apparatus and optical rangefinder using the same Masahiro Ohishi 2002-03-12
6314651 Rotary laser irradiating system and photodetection system Kunihiro Hayashi 2001-11-13
6286607 Construction machine control system Kunihiro Hayashi 2001-09-11