Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Akihiro Yamamoto — 169 Patents

Sharp Kabushiki Kaisha: 38 patents #281 of 10,731Top 3%
Sumitomo Electric Industries: 18 patents #1,247 of 21,551Top 6%
RERenesas Electronics: 17 patents #139 of 4,529Top 4%
Honda Motor Co.: 15 patents #1,078 of 21,052Top 6%
Panasonic: 9 patents #2,948 of 21,108Top 15%
Hitachi: 8 patents #5,193 of 28,497Top 20%
JAJatco: 8 patents #76 of 871Top 9%
HCHitachi Industrial Equipment Systems Co.: 7 patents #61 of 550Top 15%
ARArkray: 6 patents #47 of 354Top 15%
Nsk: 4 patents #376 of 1,559Top 25%
FDFdk: 4 patents #40 of 324Top 15%
SPSakai Display Products: 4 patents #45 of 175Top 30%
MIMitsubishi Cable Industries: 4 patents #43 of 372Top 15%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
Nissan Motor Co.: 3 patents #2,303 of 8,689Top 30%
VMVia Mechanics: 3 patents #2 of 34Top 6%
CKCkd: 2 patents #99 of 332Top 30%
NINikon: 1 patents #1,647 of 2,493Top 70%
OLOlympus: 1 patents #2,078 of 3,097Top 70%
PJPrimetals Technologies Japan: 1 patents #47 of 100Top 50%
NCNichirin Co.: 1 patents #7 of 24Top 30%
RCRiken Keiki Co.: 1 patents #14 of 35Top 40%
RDRoland Dg: 1 patents #88 of 158Top 60%
MCMitsui Chemicals: 1 patents #1,270 of 2,279Top 60%
MMMitsubishi-Hitachi Metals Machinery: 1 patents #15 of 45Top 35%
SCSumitomo Construction Machinery Co.: 1 patents #46 of 89Top 55%
FAFanuc: 1 patents #1,202 of 1,735Top 70%
CLCentral Glass Company, Limited: 1 patents #505 of 968Top 55%
YEYokogawa Electric: 1 patents #658 of 1,441Top 50%
NCNippon Grease Co.: 1 patents #6 of 22Top 30%
Ericsson: 1 patents #5,704 of 9,909Top 60%
NSNippon Steel: 1 patents #2,111 of 4,423Top 50%
Hiroshima, JP: #2 of 4,738 inventorsTop 1%
Overall (All Time): #4,849 of 4,157,543Top 1%
169 Patents All Time
Akihiro Yamamoto has been granted 169 US patents while listed as an inventor at Sharp Kabushiki Kaisha. The first was granted in 1985 and the most recent in December 2025. Akihiro Yamamoto ranks #4,849 of 4,157,543 US inventors in our database (top 0.12%). Patent records list Akihiro Yamamoto in Hiroshima, JP.

Patents per Year

Patents granted per year, 1994 to 2025Bar chart with a peak of 10 patents in 2013.peak 101994: 1 patents19941995: 2 patents1996: 1 patents1999: 7 patents19992000: 5 patents2001: 4 patents2002: 7 patents20022003: 1 patents2004: 3 patents2005: 9 patents20052006: 7 patents2007: 5 patents2008: 3 patents20082009: 5 patents2010: 5 patents2011: 7 patents20112012: 6 patents2013: 10 patents2014: 6 patents20142015: 8 patents2016: 3 patents2017: 9 patents20172018: 8 patents2019: 4 patents2020: 3 patents20202021: 10 patents2022: 10 patents2023: 7 patents20232024: 6 patents2025: 2 patents2025

Issued Patents All Time

Showing 1–25 of 169 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12505755 Welding training system, welding training method, and program Yutaka Aoyama, Yasuo Oomori, Junichi Oono, Hideaki Ogura, Hiroyuki Taniyama +1 more 2025-12-23
12318827 Rolling mill, rolling mill control method, and thrust force supporting method in rolling mill Kenji Horii, Toshihiro Usugi, Hikaru Nakaya, Daisuke IWAKI, Hiroki Yamasaki 2025-06-03
12044232 Fluid machine system and method for controlling same Norio Aoyagi, Hiroaki Saito, Fuminori Kato, Daichi Oka 2024-07-23
12018352 Hot rolled steel sheet Mutsumi SAKAKIBARA, Akifumi SAKAKIBARA, Tetsu Asato 2024-06-25
11982340 Two-speed transmission Hirotaka Kishida 2024-05-14
11976648 Fluid machine Yoshiyuki Kanemoto, Daichi Oka 2024-05-07
11937410 Package-type fluid machine Fuminori Kato, Yoshiyuki Kanemoto, Hiroaki Saito, Daichi Oka 2024-03-19
11867242 Power transmission path switching device and two-stage transmission Hirotaka Kishida 2024-01-09
11852228 Differential device Eiji Inoue 2023-12-26
11745340 Robot controller Takashi Nishimura, Issei AOYAMA, Tetsuro Izumi, Shangning Li 2023-09-05
11697786 Grease composition Satoshi Doi, Jusei Maeda 2023-07-11
11644476 Analysis device Naotsugu Onuma 2023-05-09
11619644 Analysis device and positioning method Shigeru Kitamura, Naoto Shichi 2023-04-04
11585335 Gas compressor and method for controlling same Norio Aoyagi, Yoshiyuki Kanemoto, Hiroaki Saito, Fuminori Kato, Daichi Oka 2023-02-21
11542951 Gas compressor and control method therefor Yoshiyuki Kanemoto, Norio Aoyagi, Hiroaki Saito, Fuminori Kato, Daichi Oka 2023-01-03
11534946 Machine base of injection molding machine Keisuke Sugahara 2022-12-27 $11,678,000
11493128 Motive power transmission route switching device and two-speed transmission Hirotaka Kishida, Ricardo Rodriguez Lopez, Seigou Urakami, Shohei Kaneko 2022-11-08
11467175 Analysis device and positioning method Shigeru Kitamura, Naoto Shichi 2022-10-11
11455248 Semiconductor device capable of performing software lock-step Atsushi Nakamura, Kazuaki TERASHIMA, Manabu Koike 2022-09-27
11435638 Liquid crystal display device Yoshitaka Okumoto, Koji Hasegawa 2022-09-06
11415586 Analysis device Daisuke Matsumoto, Masao Kawano 2022-08-16
11401934 Rotary displacement compressor having a check valve and a backflow control valve arranged in series through a discharge pipe Fuminori Kato, Yoshiyuki Kanemoto, Hiroaki Saito 2022-08-02
11378960 Mobile entity Ryosuke Nakamura, Azusa Amino, Taishi Ueda 2022-07-05
11327006 Analysis device Naoto Shichi 2022-05-10
11320078 Checking tool for tube coupler Naoyuki Oba, Katsumi Ogawa, Hiroki Iwata 2022-05-03