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

Jun Etoh — 57 Patents

Hitachi: 49 patents #305 of 28,497Top 2%
HEHitachi Vlsi Engineering: 17 patents #8 of 666Top 2%
HCHitachi Ulsi Systems Co.: 4 patents #214 of 867Top 25%
RTRenesas Technology: 3 patents #990 of 3,337Top 30%
HHHitachi High-Technologies: 2 patents #1,236 of 1,200Top 105%
HCHitachi Device Engineering Co.: 2 patents #202 of 514Top 40%
VJVictor Company Of Japan: 1 patents #818 of 1,489Top 55%
EMElpida Memory: 1 patents #419 of 692Top 65%
Tokyo, JP: #1,488 of 90,295 inventorsTop 2%
Overall (All Time): #42,642 of 4,157,543Top 2%
57 Patents All Time
Jun Etoh has been granted 57 US patents while listed as an inventor at Hitachi. The first was granted in 1984 and the most recent in September 2025. Jun Etoh ranks #42,642 of 4,157,543 US inventors in our database (top 1.0%). Patent records list Jun Etoh in Tokyo, JP.

Issued Patents All Time

Showing 1–25 of 57 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12422451 Camera holding device for automatic analysis apparatus Manabu Ochi, Kenshiro SAKATA, Yoichiro SUZUKI, Tetsuji Kawahara 2025-09-23
11664185 Vibration damping system for charged particle beam apparatus Hironori Ogawa, Shuichi Nakagawa, Terunobu Funatsu 2023-05-30
7499340 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2009-03-03 $108,000
7345929 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2008-03-18 $190,000
RE40132 Large scale integrated circuit with sense amplifier circuits for low voltage operation Yoshinobu Nakagome 2008-03-04
7203101 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2007-04-10 $231,000
7106643 Method for manufacturing memory device provided with a defect recovery mechanism featuring a redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 2006-09-12 $112,000
7016236 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2006-03-21 $111,000
6909647 Semiconductor device having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 2005-06-21 $109,000
6898130 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2005-05-24 $73,000
6754114 Semiconductor device having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 2004-06-22
6657901 Semiconductor device formed in a rectangle region on a semiconductor substrate including a voltage generating circuit Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2003-12-02 $161,000
6577544 Semiconductor device having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 2003-06-10 $112,000
6515913 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2003-02-04 $141,000
RE37593 Large scale integrated circuit with sense amplifier circuits for low voltage operation Kiyoo Itoh, Yoshiki Kawajiri, Yoshinobu Nakagome, Eiji Kume, Hitoshi Tanaka 2002-03-19
6337817 Semiconductor device having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 2002-01-08 $223,000
6335884 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2002-01-01
6212089 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2001-04-03 $431,000
6160744 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2000-12-12 $1,080,000
6104647 Semiconductor device having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 2000-08-15 $317,000
6049500 Semiconductor memory device and defect remedying method thereof Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 2000-04-11 $636,000
5966336 Semiconductor device having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 1999-10-12 $633,000
5955896 Input buffer using a differential amplifier Masashi Horiguchi, Takeshi Sakata, Kan Takeuchi, Katsumi Matsuno, Masakazu Aoki 1999-09-21 $811,000
5854508 Semiconductor memory device having zigzag bonding pad arrangement Kazuhiko Kajigaya, Kazuyuki Miyazawa, Manabu Tsunozaki, Kazuyoshi Oshima, Takashi Yamazaki +17 more 1998-12-29 $434,000
5815448 Semiconductor memory having redundancy circuit Masashi Horiguchi, Masakazu Aoki, Kiyoo Itoh 1998-09-29 $128,000