HK

Hiroki Katoh

Tdk: 9 patents #675 of 3,796Top 20%
Brother Kogyo: 3 patents #1,626 of 2,767Top 60%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #370,240 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12137614 Piezoelectric composition, piezoelectric element, piezoelectric device, piezoelectric transformer, ultrasonic motor, ultrasonic wave-generating element, and filter element Yumi Akiyama 2024-11-05
12096695 Piezoelectric element, piezoelectric actuator, and piezoelectric transformer Yuiko Hirose, Yumi Akiyama 2024-09-17
11659769 Piezoelectric composition and piezoelectric element Masakazu Hirose, Yuiko Hirose 2023-05-23
11271147 Piezoelectric composition and piezoelectric element Masakazu Hirose, Yuiko Hirose, Tamotsu Sasaki, Yuji Umeda 2022-03-08
11239410 Piezoelectric composition and piezoelectric element Yuiko Hirose, Masakazu Hirose 2022-02-01
11195986 Piezoelectric composition and piezoelectric element Yuiko Hirose, Masakazu Hirose 2021-12-07
11005028 Piezoelectric composition and piezoelectric element Yuiko Hirose, Masakazu Hirose, Mirai ISHIDA 2021-05-11
10691040 Abnormal discharge detection circuit for corona chargers 2020-06-23
10268151 Image forming apparatus having photoconductor and method of controlling the same Masamitsu Takahashi, Masahito Hamaya, Yudai Minami, Katsumi Inukai 2019-04-23
10050922 Server and method for processing email messages Hiroaki Takahashi, Michio Masuno, Kazuhiro Hayashi 2018-08-14
9905749 Piezoelectric composition and piezoelectric device 2018-02-27
9835969 Image forming apparatus having a plurality of selectively charged photosensitive bodies and controlling method for same Masamitsu Takahashi, Masahito Hamaya 2017-12-05
9831418 Piezoelectric composition and piezoelectric element Taku Masai, Masahito Furukawa 2017-11-28