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

Isamu Yoshida — 53 Patents

Hitachi: 35 patents #682 of 28,497Top 3%
NTNtn: 10 patents #157 of 1,364Top 15%
RTRenesas Technology: 3 patents #990 of 3,337Top 30%
NCNtn Toyo Bearing Co.: 2 patents #9 of 90Top 10%
HAHitachi Astemo: 1 patents #649 of 1,276Top 55%
TCTsubakimoto Chain: 1 patents #320 of 593Top 55%
Iwata, JP: #10 of 782 inventorsTop 2%
Overall (All Time): #48,528 of 4,157,543Top 2%
53 Patents All Time
Isamu Yoshida has been granted 53 US patents while listed as an inventor at Hitachi. The first was granted in 1980 and the most recent in March 2022. Isamu Yoshida ranks #48,528 of 4,157,543 US inventors in our database (top 1.2%). Patent records list Isamu Yoshida in Iwata, JP.

Patents per Year

Patents granted per year, 1980 to 2022Bar chart with a peak of 9 patents in 2000.peak 91980: 1 patents19801981: 1 patents1990: 1 patents1991: 2 patents19911992: 1 patents1994: 2 patents1996: 1 patents19961997: 1 patents1998: 3 patents1999: 4 patents19992000: 9 patents2001: 6 patents2002: 3 patents20022003: 2 patents2004: 3 patents2005: 2 patents20052006: 3 patents2007: 1 patents2008: 1 patents20082009: 1 patents2010: 1 patents2013: 1 patents20132014: 1 patents2022: 2 patents2022

Issued Patents All Time

Showing 1–25 of 53 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11266044 Electronic control device Masaru Kamoshida, Toshikazu Shigyo, Shiro Yamashita 2022-03-01
11244877 Sealing structure and manufacturing method thereof Tetsuya Nakatsuka, Shinya Kawakita, Susumu Ishida, Osamu Ikeda 2022-02-08
8723320 Power module and manufacturing method thereof Michiaki Hiyoshi, Takehide Yokozuka, Akihiro Muramoto 2014-05-13
8519561 Power module and vehicle-mounted inverter using the same Katsunori Azuma, Mutsuhiro Mori, Michiaki Hiyoshi, Seiichi Hayakawa, Koji Sasaki 2013-08-27
7679176 Semiconductor device and electronic control unit using the same Masahiko Asano, Yasuo Akutsu, Masahide Harada, Kaoru Uchiyama, Shinichi Fujiwara 2010-03-16 $67,000
7498671 Power semiconductor module Shinichi Fujiwara, Masahide Harada, Hideto Yoshinari, Shosaku Ishihara, Shiro Yamashita +1 more 2009-03-03 $108,000
7445455 Electronic device Takehide Yokozuka, Masahide Harada, Shiro Yamashita, Masahiko Asano, Koji Sato +2 more 2008-11-04 $125,000
7215886 Optical communication module Shigenobu Maruyama, Kazumi Kawamoto, Hiroaki Furuichi, Tooru Yoshida, Katsuya Oono +6 more 2007-05-08 $198,000
7062987 Ball bearing and a continuously variable speed transmission of belt type Keisuke Kazuno 2006-06-20 $191,000
7004860 Belt type infinite variable-speed drive Kiyotake Shibata, Masahiro Nobutomo, Morihisa Yoshioka 2006-02-28 $358,000
6991062 Ball screw and wheel steering device having the same Keisuke Kazuno, Morihisa Yoshioka 2006-01-31 $464,000
6919622 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjo +19 more 2005-07-19 $108,000
6861294 Semiconductor devices and methods of making the devices Shigeharu Tsunoda, Junichi Saeki, Kazuya Ooji, Michiharu Honda, Makoto Kitano +5 more 2005-03-01 $144,000
6736235 Powered steering device and ball screw mechanism therefor Kiyotake Shibata, Yoshinori Ikeda 2004-05-18
6720208 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjo +19 more 2004-04-13
6686226 Method of manufacturing a semiconductor device a ball grid array package structure using a supporting frame Shigeharu Tsunoda, Junichi Saeki, Kazuya Ooji, Michiharu Honda, Makoto Kitano +5 more 2004-02-03 $239,000
6662921 Wheel steering apparatus Keisuke Kazuno, Koji Sato 2003-12-16
6531760 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjo +19 more 2003-03-11
6464034 Electrically powered steering device Masaaki Toda, Koji Tateishi, Kiyoshige Yamauchi, Morihisa Yoshioka 2002-10-15
6454042 Ball screw and electrically powered steering device having the ball screw Yoshinori Ikeda 2002-09-24
6439338 Ball screw mechanism and electrically powered steering device utilizing the same Morihisa Yoshioka, Koji Tateishi, Yoshinori Ikeda 2002-08-27
6326681 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjo +19 more 2001-12-04 $233,000
6303982 Semiconductor device Gen Murakami, Kunihiro Tsubosaki, Masahiro Ichitani, Kunihiko Nishi, Ichiro Anjo +19 more 2001-10-16 $194,000
6227839 Driving device for injection molding machine Masahiro Nobutomo, Koji Tateishi, Takayuki Owada 2001-05-08
6220981 Link plate for power transmission chain 2001-04-24