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 26–50 of 258 patents

Patent #TitleCo-InventorsDate
10871370 Measurement device Ikuo Ishinabe 2020-12-22
10823823 Measuring instrument Kaoru Kumagai 2020-11-03
10823558 Surveying instrument Kaoru Kumagai 2020-11-03
10816665 Surveying system Ken-ichiro Yoshino 2020-10-27
10809360 Laser scanner Kaoru Kumagai 2020-10-20
10800344 Aerial photogrammetric device and aerial photogrammetric method Kaoru Kumagai 2020-10-13
10767991 Laser scanner Kaoru Kumagai 2020-09-08
10697758 Laser remote length measurement instrument Kaoru Kumagai 2020-06-30
10634795 Rover and rover measuring system Kaoru Kumagai 2020-04-28
10634497 Shaft support structure, laser beam projecting unit and surveying instrument Hideyuki Matsumoto, Kazuki Osaragi, Takahiro Inoue 2020-04-28
10602129 Image acquiring device and image acquiring system Hitoshi Otani, Masayuki Momiuchi, Kazuki Osaragi 2020-03-24
10564265 Measurement device and measurement method Takahiro Inoue, Satoshi Yanobe, Hideyuki Matsumoto 2020-02-18
10520307 Surveying instrument Kaoru Kumagai, Tetsuji Anai 2019-12-31
10371801 Measuring instrument Kaoru Kumagai 2019-08-06
10330788 Measuring instrument Kaoru Kumagai 2019-06-25
10324183 UAV measuring apparatus and UAV measuring system Kaoru Kumagai 2019-06-18
10309774 Surveying instrument and three-dimensional camera Kaoru Kumagai 2019-06-04
10281580 Surveying system Kaoru Kumagai, Hitoshi Otani, Tetsuji Anai 2019-05-07
10185026 Measuring instrument Kaoru Kumagai 2019-01-22
10107912 Electro-optical distance meter Kaoru Kumagai 2018-10-23
10101441 Electro-optical distance meter Kaoru Kumagai 2018-10-16
10088307 Surveying instrument and three-dimensional camera Kaoru Kumagai 2018-10-02
10088303 Displacement measuring method and displacement measuring device Kaoru Kumagai, Masayuki Momiuchi, Kazuki Osaragi 2018-10-02
10048377 Posture detecting device and data acquiring device Kaoru Kumagai, Kazuki Osaragi 2018-08-14
10048063 Measuring instrument and surveying system Kaoru Kumagai, Tetsuji Anai 2018-08-14