Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Minoru Chiba — 14 Patents

TOTopcon: 6 patents #139 of 684Top 25%
SCSokkia Co.: 5 patents #2 of 45Top 5%
TCTokyo Weld Co.: 2 patents #4 of 21Top 20%
SCSokkisha Co.: 1 patents #4 of 26Top 20%
Tokyo, JP: #11,195 of 90,295 inventorsTop 15%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Minoru Chiba has been granted 14 US patents while listed as an inventor at Topcon. The first was granted in 1990 and the most recent in January 2023. Minoru Chiba ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Minoru Chiba in Tokyo, JP.

Patents per Year

Patents granted per year, 1990 to 2023Bar chart with a peak of 3 patents in 2016.peak 31990: 1 patents19902001: 1 patents20012002: 1 patents20022003: 2 patents20032007: 1 patents20072008: 2 patents20082014: 1 patents20142015: 1 patents20152016: 3 patents20162023: 1 patents2023

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
11550034 Target instrument and surveying system Kaoru Kumagai, Akinobu Sugiura 2023-01-10
9523574 Surveying instrument Yosuke Okudaira 2016-12-20
9523575 Guide light device, survey apparatus having the guide light device, survey system using the survey apparatus, survey pole used in the survey system, and mobile wireless transceiver used in the survey system Kaoru Kumagai 2016-12-20
9482532 Surveying instrument and surveying operation system Kaoru Kumagai, Masaru Muraki 2016-11-01
9121698 Electronic level device and level staff used for electronic level device Kaoru Kumagai, Jun Abe 2015-09-01
8670130 Laser scanner Fumio Ohtomo, Kaoru Kumagai 2014-03-11
7345748 Survey system capable of remotely controlling a surveying instrument Akinobu Sugiura, Masaru Muraki, Masataka Kawakami 2008-03-18
7321420 Survey system Satoshi Yasutomi, Nobuyuki Nishita 2008-01-22
7304729 Survey system Satoshi Yasutomi, Nobuyuki Nishita 2007-12-04
6547879 Electrode forming apparatus for electric parts Akira Saito, Fukashi Ogasawara, Isao Kobayashi 2003-04-15
6512859 Electronic level 2003-01-28
6360866 Conveying apparatus for electric parts Akira Saito, Fukashi Ogasawara, Isao Kobayashi 2002-03-26
6167629 Electronic level and a leveling rod for use in combination with the same 2001-01-02
4898452 Apparatus for mounting target plate on reflector for electronic distance meter Hideya Kawachi 1990-02-06