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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Koichi Numata — 28 Patents

Sony: 9 patents #4,898 of 25,231Top 20%
Toyota: 8 patents #3,687 of 26,838Top 15%
MCMitsui Mining & Smelting Co.: 6 patents #80 of 838Top 10%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Yokohama, JP: #3,361 of 49,234 inventorsTop 7%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
Koichi Numata has been granted 28 US patents while listed as an inventor at Sony. The first was granted in 1997 and the most recent in October 2015. Koichi Numata ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Koichi Numata in Yokohama, JP.

Patents per Year

Patents granted per year, 1997 to 2015Bar chart with a peak of 3 patents in 2002.peak 31997: 1 patents19971998: 2 patents1999: 1 patents19992000: 1 patents2001: 2 patents20012002: 3 patents2003: 3 patents20032004: 2 patents2009: 2 patents20092010: 1 patents2011: 2 patents20112012: 3 patents2013: 1 patents20132014: 3 patents2015: 1 patents2015

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9149409 Back kneading device and chair-type massage apparatus equipped with the back kneading device Shinsaku Shimizu, Fumitaka Ishiguro 2015-10-06
8696608 Lower leg massage apparatus Teruo Mihara, Shinsaku Shimizu, Shigeki Noda 2014-04-15
8690239 Chair-type massage apparatus Tetsuya Ishikawa, Shinsaku Shimizu 2014-04-08
8684955 Back kneading device mounted in chair-type massage apparatus and chair-type massage apparatus equipped with the back kneading device Ying Liu, Shinsaku Shimizu, Fumitaka Ishiguro 2014-04-01
8500664 Massage chair with foot massaging device Shinsaku Shimizu, Shigeki Noda 2013-08-06
8169644 Thermal dye sublimation printer and ink ribbon cassette therefor Hiroshi Katsuno, Takashi Bunya, Shinsuke Kanayama, Shuichi Ota, Izumi Kariya +3 more 2012-05-01 $106,000
8153332 Fuel cell system Satoshi Aoyama, Satoshi Iguchi, Masahiko Iijima, Naoki Ito 2012-04-10 $886,000
8114549 Fuel cell 2012-02-14 $1,443,000
7986515 Image display apparatus Takashi Bunya, Takumi Endoh 2011-07-26 $261,000
7864515 Image display apparatus Takashi Bunya, Takumi Endoh 2011-01-04 $399,000
7651287 Printer device having ink ribbon cartridge with protection plate for thermal head Kazuyoshi Murata, Hiroshi Katsuno, Sunao Kushiro, Atsushi Yanbe, Shuichi Ota +1 more 2010-01-26 $668,000
7575729 Fuel reforming apparatus and method of controlling the fuel reforming apparatus Satoshi Iguchi 2009-08-18 $2,475,000
7491462 Electrolyte membrane for fuel cell operable in medium temperature range, fuel cell using the same, and manufacturing methods therefor Naoki Ito, Masahiko Iijima, Satoshi Aoyama, Satoshi Iguchi 2009-02-17 $5,854,000
6783877 Fuel reforming apparatus Takashi Shimazu, Satoshi Iguchi, Satoshi Aoyama, Kazuhisa Kunitake, Takeshi Nishikawa +2 more 2004-08-31 $737,000
6706444 Process for preparing lithium manganate in spinel structure Tsuneyoshi Kamada 2004-03-16 $113,000
6603724 Disk recording and/or reproducing device, disk loading mechanism, and disk eject mechanism Ryuzo Tamayama 2003-08-05 $395,000
6576215 Method for preparing lithium manganate having spinel structure Tsuneyoshi Kamada, Takuya Nakashima, Shinji Arimoto 2003-06-10
6521444 Microorganism and method for environmental purification using the same Yasushi Oda, Masami Miyata, Yukio Okamura, Toshiaki Kimura, Masatoshi Uchida +1 more 2003-02-18 $154,000
6465130 Lithium manganese complex oxide anode material for lithium secondary batteries and a lithium secondary battery using the same Shintarou Ishida 2002-10-15 $53,000
6409985 Method for producing lithium manganate Hiromu Shinkawa 2002-06-25 $71,000
6383683 Process for producing spinel type lithium manganate Masatoshi Nagayama, Shinji Arimoto, Tsuneyoshi Kamada 2002-05-07 $27,000
6208607 Disk loading apparatus with interlocked shutter mechanism, elevator mechanism and eject mechanism Mitsuru Ida, Taizo Ogawa 2001-03-27 $1,714,000
6171844 Microorganism and method for environmental purification using the same Yasushi Oda, Masami Miyata, Yukio Okamura, Toshiaki Kimura, Masatoshi Uchida +1 more 2001-01-09 $476,000
6123911 Process for preparing lithium manganate for lithium secondary battery Munetoshi Yamaguchi 2000-09-26 $37,000
5998198 Microorganisms that decompose halogenated hydrocarbons and their use Mika Nakayama, Chie Miyazaki, Osamu Asami, Yukio Yamada, Yasushi Oda 1999-12-07 $292,000