Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Masahiro Tabuchi — 14 Patents

Nec: 13 patents #943 of 14,502Top 7%
FFFirma Carl Freudenberg: 1 patents #255 of 512Top 50%
Minamiaizu, JP: #2 of 13 inventorsTop 20%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Masahiro Tabuchi has been granted 14 US patents while listed as an inventor at Nec. The first was granted in 1986 and the most recent in February 2022. Masahiro Tabuchi ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Masahiro Tabuchi in Minamiaizu, JP.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11257489 Portable terminal, management server, work handover support system, work handover support method, and program Motohiko Sakaguchi 2022-02-22
8244797 Information supplementing device, system, method and program Akiko Suito, Yoshiyuki Koseki, Katsuhiro Ochiai 2012-08-14
7584247 Server construction support technique Katsuhiro Ochiai, Yuichi Koike 2009-09-01
7340742 Priority execution control method in information processing system, apparatus therefor, and program 2008-03-04
7137137 Composite media file broadcasting program broadcasting control system Rina Hayasaka 2006-11-14 $15,000
6606633 Compound document management system and compound document structure managing method 2003-08-12 $47,000
6446093 Document sharing management method for a distributed system 2002-09-03 $9,000
6332160 Method for matching distributed transactions and machine-readable recording medium with method programs 2001-12-18 $78,000
6311227 Procedure calling method 2001-10-30 $32,000
6212533 Hyper-media document management system having navigation mechanism 2001-04-03 $23,000
5950215 System for managing a compound document 1999-09-07 $30,000
5893122 Hyper-media system including plural application processors which execute navigation processing for hyper-media document 1999-04-06 $18,000
5822583 System for designating matching condition as selected matching condition to generate an event if that selected matching condition is satisfied 1998-10-13 $9,000
4569343 Skin application medicament Hideo Kimura, Motokazu Iwasaki 1986-02-11