Shirou Ozaki has been granted 58 US patents while listed as an inventor at Fujitsu Limited . The first was granted in 2007 and the most recent in July 2025. Shirou Ozaki ranks #41,319 of 4,157,543 US inventors in our database (top 0.99%). Patent records list Shirou Ozaki in Yamato, JP.
Patents per Year Patents granted per year, 2007 to 2025 Bar chart with a peak of 7 patents in 2018. peak 7 2007: 1 patents 2007 2009: 2 patents 2010: 3 patents 2010 2011: 2 patents 2012: 1 patents 2012 2013: 5 patents 2014: 6 patents 2014 2015: 5 patents 2016: 4 patents 2016 2017: 6 patents 2018: 7 patents 2018 2019: 7 patents 2020: 2 patents 2020 2021: 2 patents 2022: 1 patents 2022 2023: 2 patents 2025: 2 patents 2025 Issued Patents All Time
Showing 1–25 of 58 patents
Patent # Title Co-Inventors Date
12369345 Compound semiconductor device, amplifier, and method for manufacturing compound semiconductor device Junji Kotani , Toshihiro Ohki , Naoya Okamoto 2025-07-22
12193151 High-frequency circuit board and antenna module Naoya Okamoto , Yoshihiro Nakata , Yusuke Kumazaki , Toshihiro Ohki , Naoki Hara 2025-01-07
11688663 Semiconductor device, semiconductor device fabrication method, and electronic device Toshihiro Ohki , Kozo Makiyama , Junya Yaita 2023-06-27
11646366 Semiconductor device Kozo Makiyama , Atsushi Yamada , Junji Kotani 2023-05-09
11387357 Compound semiconductor device, method for manufacturing the same and amplifier Toshihiro Ohki 2022-07-12
11088044 Compound semiconductor device and fabrication method therefor, and amplifier Toshihiro Ohki 2021-08-10
10964805 Compound semiconductor device Kozo Makiyama , Yuichi Minoura , Yusuke Kumazaki , Toshihiro Ohki , Naoya Okamoto 2021-03-30
10796917 Method for manufacturing gate insulator for HEMT Kozo Makiyama , Naoya Okamoto 2020-10-06
10680073 Semiconductor device and manufacturing method thereof Naoya Okamoto 2020-06-09
10508343 Etching method for manufacturing semiconductor device — 2019-12-17
10468514 Semiconductor device and method for producing the same, power supply device, and high-frequency amplifier Naoya Okamoto 2019-11-05
10312344 Semiconductor device, manufacturing method of semiconductor device, power unit, and amplifier — 2019-06-04
10312094 AlOx/InOx gate insulator for HEMT Kozo Makiyama , Naoya Okamoto 2019-06-04
10276703 Compound semiconductor device and method of manufacturing the same Youichi KAMADA 2019-04-30
10276671 Semiconductor device, method for manufacturing semiconductor device, and electronic device — 2019-04-30
10192964 Compound semiconductor device and method of manufacturing the same Youichi KAMADA 2019-01-29
10084059 Semiconductor device and manufacturing method of semiconductor device Naoya Okamoto 2018-09-25
10056460 Semiconductor device and manufacturing method thereof Naoya Okamoto 2018-08-21
10043897 Semiconductor device and method of fabricating semiconductor device — 2018-08-07
10043727 Compound semiconductor device and method of manufacturing the same Naoya Okamoto 2018-08-07
10002942 Semiconductor device and method of manufacturing semiconductor device Kozo Makiyama 2018-06-19
9966463 Semiconductor device and method for producing same having multilayer wiring structure with contact hole having hydrophobic film formed on side surface of the contact hole Naoya Okamoto 2018-05-08
9941401 Semiconductor device, power supply apparatus and high-frequency amplifier Kozo Makiyama , Naoya Okamoto 2018-04-10
9779933 Semiconductor device and method of manufacturing semiconductor device Kozo Makiyama 2017-10-03
9755061 Semiconductor device and method for producing the same, power supply device, and high-frequency amplifier Naoya Okamoto 2017-09-05
