JF

Joji Fujiwara

PA Panasonic: 18 patents #1,184 of 21,108Top 6%
SC Skyworks Filter Solutions Japan Co.: 14 patents #2 of 29Top 7%
SC Skyworks Panasonic Filter Solutions Japan Co.: 10 patents #3 of 27Top 15%
SS Skyworks Solutions: 7 patents #222 of 948Top 25%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
📍 Suita, JP: #12 of 1,253 inventorsTop 1%
Overall (All Time): #53,781 of 4,157,543Top 2%
50
Patents All Time

Issued Patents All Time

Showing 1–25 of 50 patents

Patent #TitleCo-InventorsDate
12425000 Low velocity surface acoustic wave device Riho Sasaki, Kyohei Kobayashi, Noriaki Amo 2025-09-23
12300912 Filter assembly operating at a wider passband with improved reflection coefficient Motoyuki Tajima, Rei Goto, Yiliu Wang 2025-05-13
11923829 Reduced temperature coefficient of frequency at filter transition band while retaining pass-band width Tomoya Komatsu 2024-03-05
11677380 Suppression of transverse mode spurious signals in surface acoustic wave devices utilizing a gap hammer structure Riho Sasaki 2023-06-13
11652466 Suppression of transverse mode spurious signals in surface acoustic wave devices utilizing a dense film above gap region of interdigital transducer electrodes 2023-05-16
11444599 Suppression of spurious signals in surface acoustic wave devices Riho Sasaki 2022-09-13
10979028 Reduced temperature coefficient of frequency at filter transition band while retaining pass-band width Tomoya Komatsu 2021-04-13
10491194 Filter devices having reduced spurious emissions from lamb waves Tomoya Komatsu 2019-11-26
10187039 Filter devices having reduced spurious emissions from lamb waves Tomoya Komatsu 2019-01-22
10141643 High-frequency filter including matching circuit Tetsuya Tsurunari, Tomoya Komatsu, Hiroyuki Nakamura 2018-11-27
10135422 Filter devices having improved attenuation characteristics Rei Goto, Tetsuya Tsurunari, Hiroyuki Nakamura 2018-11-20
10097159 Acoustic wave elements, antenna duplexers and electronic devices Tomoya Komatsu, Hidehito Shimizu, Tetsuya Tsurunari, Hiroyuki Nakamura 2018-10-09
10044340 Ladder-type elastic wave filter having series and parallel resonators Tetsuya Tsurunari, Tomoya Komatsu, Hiroyuki Nakamura 2018-08-07
9819329 Ladder-type surface acoustic wave filter including series and parallel resonators Tetsuya Tsurunari, Hiroyuki Nakamura, Hidekazu Nakanishi 2017-11-14
9748924 Elastic wave element with interdigital transducer electrode Tomoya Komatsu, Hiroyuki Nakamura, Tetsuya Tsurunari, Hidekazu Nakanishi 2017-08-29
9722573 High frequency filter with phase compensating circuit Toru Jibu, Tomoya Komatsu, Hiroyuki Nakamura, Tetsuya Tsurunari, Kazunori Nishimura 2017-08-01
9722576 Elastic wave filter and duplexer using same Tetsuya Tsurunari, Hiroyuki Nakamura, Rei Goto 2017-08-01
9640750 Acoustic wave device with suppressed higher order transverse modes Hidekazu Nakanishi, Hiroyuki Nakamura, Tetsuya Tsurunari 2017-05-02
9520857 Electronic device including filter Toru Jibu, Tomoya Komatsu, Hiroyuki Nakamura, Tetsuya Tsurunari, Kazunori Nishimura 2016-12-13
9473107 Multimode elastic wave device Tomoya Komatsu, Tetsuya Tsurunari, Hiroyuki Nakamura, Kazunori Nishimura 2016-10-18
9467117 Ladder-type elastic wave filter and antenna duplexer using same Tetsuya Tsurunari, Tomoya Komatsu, Hiroyuki Nakamura 2016-10-11
9425766 Elastic wave element, and electrical apparatus and duplexer using same Yosuke Hamaoka, Tetsuya Tsurunari, Hidekazu Nakanishi, Hiroyuki Nakamura 2016-08-23
9419584 Antenna sharing device Tetsuya Tsurunari, Hiroyuki Nakamura 2016-08-16
9294071 Antenna duplexer Toru Yamaji, Kazunori Nishimura, Hiroyuki Nakamura 2016-03-22
9246533 Electronic device including filter Toru Jibu, Tomoya Komatsu, Hiroyuki Nakamura, Tetsuya Tsurunari, Kazunori Nishimura 2016-01-26