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

Seiji Funaba — 45 Patents

EMElpida Memory: 30 patents #11 of 692Top 2%
HSHitachi Automotive Systems: 9 patents #167 of 1,636Top 15%
Hitachi: 8 patents #5,193 of 28,497Top 20%
HSHitachi Tohbu Semiconductor: 2 patents #78 of 223Top 35%
RSRenesas Eastern Japan Semiconductor: 1 patents #25 of 82Top 35%
Hitachinaka, JP: #83 of 2,447 inventorsTop 4%
Overall (All Time): #64,393 of 4,157,543Top 2%
45 Patents All Time
Seiji Funaba has been granted 45 US patents while listed as an inventor at Elpida Memory. The first was granted in 2001 and the most recent in May 2021. Seiji Funaba ranks #64,393 of 4,157,543 US inventors in our database (top 1.5%). Patent records list Seiji Funaba in Hitachinaka, JP.

Patents per Year

Patents granted per year, 2001 to 2021Bar chart with a peak of 7 patents in 2006.peak 72001: 2 patents20012002: 2 patents2003: 2 patents20032004: 1 patents2005: 4 patents20052006: 7 patents2007: 3 patents20072008: 4 patents2009: 3 patents20092010: 6 patents2011: 2 patents20112013: 2 patents2014: 2 patents20142015: 3 patents2018: 1 patents20182021: 1 patents2021

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11011443 Power semiconductor device including a spacer Tokihito Suwa 2021-05-18
9960710 Automotive vehicle inverter control apparatus Masashige Tsuji, Yasuo Noto 2018-05-01
9209737 Power converter Yasuo Noto, Masashige Tsuji 2015-12-08
8971079 Inverter device Tetsuro Tateyama, Yasuo Noto, Koichi Yahata, Hiroki Shimano 2015-03-03
8970155 Power inverter Yasuo Noto, Masashige Tsuji, Keiji Kunii, Koichi Yahata, Shinichiro Hida 2015-03-03
8791681 Electric power conversion system Yoshio Akaishi, Yasuo Noto, Koichi Yahata, Masashige Tsuji 2014-07-29
8686694 Discharge circuit for smoothing capacitor of DC power supply Yasuo Noto, Masashige Tsuji 2014-04-01
8456866 Power supply circuit and power conversion device Yasuo Noto, Masashige Tsuji 2013-06-04
8436590 Discharge circuit for smoothing capacitor of DC power supply Yasuo Noto, Masashige Tsuji 2013-05-07
8064222 Semiconductor integrated circuit device Yoji Nishio 2011-11-22 $2,392,000
7889584 Semiconductor memory device having input first-stage circuit Yoji Idei, Susumu Hatano, Yoji Nishio, Yutaka Uematsu 2011-02-15 $7,306,000
7856072 Semiconductor device, memory device and memory module having digital interface Hideki Osaka, Yoji Nishio, Kazuyoshi Shoji 2010-12-21 $4,496,000
7768867 Stacked semiconductor device Yoji Nishio, Yutaka Uematsu, Hideki Osaka, Tsutomu Hara, Koichiro Aoki 2010-08-03 $2,326,000
7760531 Semiconductor module Yoji Nishio, Yutaka Uematsu, Hideki Osaka 2010-07-20 $2,641,000
7725778 Semiconductor integrated circuit and electronic device Yoji Nishio 2010-05-25 $4,235,000
7689944 Method for designing semiconductor apparatus, system for aiding to design semiconductor apparatus, computer program product therefor and semiconductor package Mitsuaki Katagiri, Satoshi Nakamura, Takashi Suga, Satoshi Isa, Yoji Nishio +1 more 2010-03-30 $3,068,000
7656744 Memory module with load capacitance added to clock signal input Yurika Aoki, Yoji Nishio 2010-02-02 $3,689,000
7633147 Semiconductor unit having two device terminals for every one input/output signal Hisashi Abo, Takao Ono, Koji Hosokawa, Yoji Nishio, Atsushi Nakamura +1 more 2009-12-15 $5,540,000
7558336 Semiconductor device, memory device and memory module having digital interface Hideki Osaka, Yoji Nishio, Kazuyoshi Shoji 2009-07-07 $2,670,000
7478287 Semiconductor integrated circuit and electronic device Yoji Nishio 2009-01-13 $1,962,000
7447038 Module Yutaka Uematsu, Hideki Osaka, Yoji Nishio 2008-11-04 $1,625,000
7411806 Memory module and memory system Yoji Nishio, Kayoko Shibata 2008-08-12 $1,336,000
7385281 Semiconductor integrated circuit device Yoji Nishio 2008-06-10 $2,146,000
RE40205 Semiconductor device and timing control circuit Yoji Nishio, Yuichi Okuda, Yoshinobu Nakagome 2008-04-01
7282791 Stacked semiconductor device and semiconductor memory module Yoji Nishio 2007-10-16 $1,318,000