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

Tamon Ikeda — 16 Patents

Sony: 16 patents #2,638 of 25,231Top 15%
Tokyo, JP: #9,687 of 90,295 inventorsTop 15%
Overall (All Time): #284,196 of 4,157,543Top 7%
16 Patents All Time
Tamon Ikeda has been granted 16 US patents while listed as an inventor at Sony. The first was granted in 1984 and the most recent in June 2010. Tamon Ikeda ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Tamon Ikeda in Tokyo, JP.

Patents per Year

Patents granted per year, 1984 to 2010Bar chart with a peak of 3 patents in 2002.peak 31984: 1 patents19841992: 1 patents19921994: 1 patents19942001: 1 patents20012002: 3 patents20022003: 2 patents20032005: 3 patents20052006: 2 patents20062007: 1 patents20072010: 1 patents2010

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7747144 Information processing apparatus, information processing method, recording medium, control Hajime Nishimura 2010-06-29 $267,000
7193390 Apparatus for connecting secondary battery cells in series and method for controlling secondary battery cells connected in series Tamiji Nagai, Kazuo Yamazaki 2007-03-20 $1,053,000
7091698 Battery capacity calculating method Kazuo Yamazaki, Tsuyonobu Hatazawa, Takashi Tomita, Ryuichi Nawa, Yuuichi Ishikawa +1 more 2006-08-15 $690,000
7078907 Battery capacity calculating method, battery capacity calculating apparatus and battery capacity calculating program Shinichi Uesaka, Takashi Tomita, Tsuyonobu Hatazawa 2006-07-18 $818,000
6961255 Switching power supply using controlled negative feedback in series with a switching device and responsive to the voltage and/or current to a load Tamiji Nagai, Kazuo Yamazaki 2005-11-01 $526,000
6956754 Switching power supply using controlled negative feedback in series with a switching device and responsive to the voltage and/or current to a load Tamiji Nagai, Kazuo Yamazaki 2005-10-18 $640,000
6917530 Switching power supply using controlled negative feedback in series with a switching device and responsive to the voltage and or current to a load Tamiji Nagai, Kazuo Yamazaki 2005-07-12 $587,000
6650090 Battery pack and signal transmission system Tamiji Nagai, Kazuo Yamazaki, Makoto Kamoshida, Tadahisa Yamamoto, Kuniharu Suzuki 2003-11-18 $959,000
6552562 Current detecting apparatus and its control method Tamiji Nagai, Kazuo Yamazaki 2003-04-22 $283,000
6462972 Power source apparatus for providing a power source in a standby mode and a pulse generating apparatus Tamiji Nagai, Kazuo Yamazaki 2002-10-08 $619,000
6452820 Power supplying apparatus and method having a primary side insulated from a secondary side Tamiji Nagai, Kazuo Yamazaki 2002-09-17 $576,000
6373724 Power supply apparatus Tamiji Nagai, Kazuo Yamazaki 2002-04-16 $1,107,000
6326768 Method, apparatus and battery pack for charging and discharging secondary batteries Tamiji Nagai 2001-12-04 $1,260,000
5306956 Connecting system for supplying electrical power to a device in place of a battery along with the transmission of data signals from the device to monitoring apparatus, or supplying electrical power to a battery for the charging thereof Hiroaki Itoh, Yoshihiro Konno 1994-04-26 $163,000
5138502 Tape counter for a rotary head type video signal recording and reproducing apparatus and tape counting method therefor Yosuke Otsu, Kikuo Yamamoto 1992-08-11 $92,000
4464553 Induction heating apparatus with an override circuit 1984-08-07 $340,000