Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MS

Masahiro Sawada — 35 Patents

NDNtt Docomo: 11 patents #259 of 1,706Top 20%
NKNippon Kogaku K.K.: 6 patents #54 of 382Top 15%
TIToyota Industries: 6 patents #402 of 955Top 45%
NCNippon Electric Glass Co.: 4 patents #101 of 437Top 25%
OKOkamoto: 2 patents #12 of 59Top 25%
KOKomatsu: 2 patents #861 of 2,087Top 45%
MCMitsui Chemicals: 2 patents #873 of 2,279Top 40%
Nec: 1 patents #7,928 of 14,502Top 55%
NNNtt Mobile Communications Network: 1 patents #141 of 253Top 60%
KCKoito Manufacturing Co.: 1 patents #610 of 1,047Top 60%
Nara, JP: #84 of 2,795 inventorsTop 4%
Overall (All Time): #96,288 of 4,157,543Top 3%
35 Patents All Time
Masahiro Sawada has been granted 35 US patents while listed as an inventor at Ntt Docomo. The first was granted in 1982 and the most recent in April 2025. Masahiro Sawada ranks #96,288 of 4,157,543 US inventors in our database (top 2.3%). Patent records list Masahiro Sawada in Nara, JP.

Patents per Year

Patents granted per year, 1982 to 2025Bar chart with a peak of 6 patents in 2006.peak 61982: 2 patents19821986: 1 patents1987: 3 patents1988: 2 patents19881989: 1 patents1990: 1 patents1991: 2 patents19912003: 1 patents2004: 2 patents2006: 6 patents20062007: 1 patents2009: 2 patents2010: 1 patents20102011: 1 patents2012: 1 patents2014: 1 patents20142015: 3 patents2016: 1 patents2017: 1 patents20172018: 1 patents2025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 35 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D1070330 Legwear Masato FUKIAGE, Tomoya Suzuki, Natsuko Kageyama, Kazuki Aoyagi 2025-04-15
9974128 Light source lighting circuit and turn signal lamp Shinji Ohta 2018-05-15
D800440 Sock Ichiro SHINGA, Kayoko Sato, Sawako Anada 2017-10-24
9326180 Mobile communication method, mobility management node, packet switch, and mobile station Itsuma Tanaka, Takatoshi Okagawa, Tomoki Shibahara, Keisuke Suzuki 2016-04-26 $377,000
9102566 Reinforced plate glass and method for manufacturing the same 2015-08-11 $10,275,000
9061582 Hydraulic excavator 2015-06-23
8973353 Exhaust gas post-treatment unit and construction vehicle carrying same Takashi Katou, Kanji Namimatsu 2015-03-10
8871348 Glass substrate with conductive film for solar cell Tomohiro Nagakane 2014-10-28 $8,498,000
8106294 Glass composition for dye-sensitized solar cell and material for dye-sensitized solar cell Masaaki Hayashi, Kouji Amano, Tomoko Yamada 2012-01-31 $30,276,000
7917158 Method and system for location management and location information providing system Masami Yabusaki 2011-03-29 $481,000
7643471 Mobile communication method, mobile communication system, session control device and originating terminal Akimichi Tanabe, Hiroaki Amada, Motoshi Tamura 2010-01-05 $295,000
7613143 System and method for controlling network, network controlling apparatus, and mobile terminal used in network control system Jun Kakishima, Takeshi Ihara, Shoichi Hirata 2009-11-03 $420,000
7574222 Method and system for location management and location information providing system Masami Yabusaki 2009-08-11 $526,000
7307967 Mobile communications system and routing management apparatus used in the mobile communications system Atsushi Iwasaki, Shinichi Isobe, Takeshi Ihara 2007-12-11 $475,000
7120459 Mobility control apparatus, mobile communication terminal and mobile communication system Masami Yabusaki, Takeshi Ihara 2006-10-10 $437,000
7113784 Method of registering position of mobile communication terminal, general calling method for mobile communication terminal and mobile communication system Masumi Fujiwara, Masami Yabusaki, Yugo Watanabe, Kouji Sasada 2006-09-26 $732,000
7083857 Fire-protection glass product with heat shielding characteristic and method for using the same Yoshio Hashibe 2006-08-01 $14,312,000
7072654 Location registration method for mobile communication terminals, en bloc paging method for mobile communication terminals, and mobile communication system Masumi Fujiwara, Masami Yabusaki, Yugo Watanabe, Kouji Sasada 2006-07-04
7026383 Polyamide resin composition and molded article thereof Yoshimasa Ogou 2006-04-11 $156,000
6990340 Communication system, communication method and switching node Toshiyuki Tamura 2006-01-24
6834102 System and method for controlling transfer Masami Yabusaki 2004-12-21 $1,394,000
6780963 Molding material for electrical and electronic parts Kunihiro Ohuchi 2004-08-24 $186,000
6512924 Mobile communications system Yasuo Maruyama, Masami Yabusaki 2003-01-28 $572,000
5009286 Lubricating oil supplying mechanism in swash plate type compressor Hayato Ikeda, Norihiko Nakamura, Naoya Yokomachi 1991-04-23 $63,000
5009574 Thrust bearing and shoe lubricator for a swash plate type compressor Hayato Ikeda, Norihiko Nakamura 1991-04-23 $63,000