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

Jun Yoshikawa — 113 Patents

NINgk Insulators: 45 patents #40 of 2,083Top 2%
TLTokyo Electron Limited: 27 patents #155 of 5,567Top 3%
Sony: 19 patents #2,195 of 25,231Top 9%
GCGodo Shusei Co.: 5 patents #1 of 21Top 5%
ABAsm Ip Holding B.V.: 5 patents #166 of 620Top 30%
TCToshiba Ceramics Co.: 4 patents #33 of 458Top 8%
MIMizuno: 3 patents #85 of 221Top 40%
NTNagoya Institute Of Technology: 2 patents #16 of 159Top 15%
YCYashima Electric Co.: 2 patents #7 of 11Top 65%
Kabushiki Kaisha Toshiba: 2 patents #10,039 of 21,451Top 50%
Rohm Co.: 1 patents #1,438 of 2,292Top 65%
KKKubota Tekko Kabushiki Kaisha: 1 patents #4 of 18Top 25%
Overall (All Time): #11,295 of 4,157,543Top 1%
113 Patents All Time
Jun Yoshikawa has been granted 113 US patents while listed as an inventor at Ngk Insulators. The first was granted in 1984 and the most recent in November 2025. Jun Yoshikawa ranks #11,295 of 4,157,543 US inventors in our database (top 0.27%). Patent records list Jun Yoshikawa in Nagoya, IL, JP.

Issued Patents All Time

Showing 1–25 of 113 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12470679 Information processing device, information processing method, program, and display system Sho Ogura, Yoshihisa Yoshioka, Keiichi Yoshioka 2025-11-11
12431440 SiC composite substrate and composite substrate for semiconductor device Kiyoshi MATSUSHIMA, Morimichi Watanabe, Risa MIYAKAZE 2025-09-30
12421621 Underlying substrate Hiroshi Fukui, Morimichi Watanabe 2025-09-23
12424440 Rare earth-containing SiC substrate and method for producing SiC epitaxial layer Kiyoshi MATSUSHIMA, Morimichi Watanabe 2025-09-23
12406845 α-Ga2O3 semiconductor film Hiroshi Fukui, Morimichi Watanabe 2025-09-02
12351941 Ground substrate and method for producing same Morimichi Watanabe 2025-07-08
12351906 Semiconductor film Morimichi Watanabe, Hiroshi Fukui 2025-07-08
12272548 Method of forming an electronic structure using reforming gas, system for performing the method, and structure formed using the method Shinya Yoshimoto, Toshihisa Nozawa 2025-04-08
12183792 SiC composite substrate and composite substrate for semiconductor device Kiyoshi MATSUSHIMA, Morimichi Watanabe, Risa MIYAKAZE 2024-12-31
12163249 Ground substrate and method for producing same Morimichi Watanabe 2024-12-10
12163252 Method for producing an α- or β-gallium oxide crystal by bring an aqueous solution including Ga ions into a supercritical state Miho Maeda 2024-12-10
12159907 Semiconductor film Hiroshi Fukui, Morimichi Watanabe 2024-12-03
12125883 Biaxially oriented SiC composite substrate and semiconductor device composite substrate Morimichi Watanabe, Kiyoshi MATSUSHIMA 2024-10-22
12125684 Temperature controlled reaction chamber 2024-10-22
12080551 SiC composite substrate including biaxially oreinted SiC layer and semiconductor device Risa MIYAKAZE, Kiyoshi MATSUSHIMA, Morimichi Watanabe 2024-09-03
12065383 Oriented ceramic sintered body production method and flat sheet Morimichi Watanabe, Kei Sato, Kiyoshi MATSUSHIMA, Takahiro Maeda, Tsutomu Nanataki 2024-08-20
12018401 Gallium oxide single crystal particle and method for producing the same Miho Maeda, Hiroyuki Shibata 2024-06-25
12012622 Paenibacillus pabuli-derived enzyme capable of producing galacto-oligosaccharide, and method for producing galacto-oligosaccharide Rei Odaka, Yasuhiro Baba, Junki OGASAWARA 2024-06-18
11908684 Method of forming an electronic structure using reforming gas, system for performing the method, and structure formed using the method Shinya Yoshimoto, Toshihisa Nozawa 2024-02-20
11605528 Plasma device using coaxial waveguide, and substrate treatment method Toshihisa Nozawa 2023-03-14
11476109 Method of forming an electronic structure using reforming gas, system for performing the method, and structure formed using the method Shinya Yoshimoto, Toshihisa Nozawa 2022-10-18
11456157 Plasma processing apparatus 2022-09-27
11136569 Heat resistant isoamylase Masahiro BABA, Ryoko SANO, Shun Ogawa, Hirofumi Horiguchi 2021-10-05
11007411 Method for manufacturing iron golf club head, iron golf club head, and iron golf club Kazuhiro Doi, Tetsuya Kanayama 2021-05-18
10832892 Antenna, plasma processing device and plasma processing method Kazuki Takahashi, Yuki KAWADA, Naoki Matsumoto, Takahiro Senda, Koji Koyama +3 more 2020-11-10