Yu Ushijima has been granted 10 US patents while listed as an inventor at Mitsubishi Electric . The first was granted in 2018 and the most recent in February 2025. Yu Ushijima ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Yu Ushijima in Tokyo, JP.
Patents per Year Patents granted per year, 2018 to 2025 Bar chart with a peak of 2 patents in 2020. peak 2 2018: 1 patents 2018 2020: 2 patents 2020 2021: 2 patents 2021 2022: 1 patents 2022 2023: 2 patents 2023 2024: 1 patents 2024 2025: 1 patents 2025 Issued Patents All Time
Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date
12224473 Polarized waveguide filter and antenna feeding circuit Hidenori Yukawa , Ryuya Seki , Hiroto Ado , Hiromasa Nakajima , Toru Takahashi 2025-02-11
12088026 Feeder line and antenna device using same Yosuke TSUZAKI 2024-09-10
D986227 Waveguide Hidenori Yukawa , Motomi WATANABE , Toru Okagaki 2023-05-16
11605903 Array antenna apparatus and method for manufacturing array antenna apparatus Hikaru Watanabe , Takashi Maruyama , Masataka Otsuka , Kazunari Kihira 2023-03-14
11387534 Converter and antenna device Ryo Ueda , Hidenori Ishibashi , Takashi Maruyama 2022-07-12
11114732 Waveguide non-reflective terminator and waveguide circuit Hidenori Yukawa , Takeshi Oshima , Motomi WATANABE , Naofumi Yoneda 2021-09-07
11101530 Polarization separation circuit Hidenori Yukawa , Motomi WATANABE , Jun Goto , Naofumi Yoneda , Shinji Arai 2021-08-24
D880461 Substrate for antenna device Ryo Ueda , Hidenori Ishibashi , Takashi Maruyama 2020-04-07
10581136 Three-way power divider and multibeam forming circuit Hidenori Yukawa , Motomi WATANABE , Naofumi Yoneda 2020-03-03
9929454 Circularly polarized wave generator Hidenori Yukawa , Tetsu Owada , Shuji Nuimura 2018-03-27
