HF

Hiroshi Fujiwara

Ricoh Company: 38 patents #399 of 9,818Top 5%
PA Panasonic: 19 patents #1,080 of 21,108Top 6%
OC Olympus Optical Co.: 16 patents #155 of 2,334Top 7%
Kubota: 6 patents #338 of 2,059Top 20%
KA Kaneka: 5 patents #246 of 1,525Top 20%
MC Maruzen Oil Co.: 4 patents #1 of 32Top 4%
Sumitomo Electric Industries: 3 patents #7,735 of 21,551Top 40%
KE Kokusai Electric: 3 patents #177 of 583Top 35%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
MC Maruzen Petrochemical Co.: 2 patents #56 of 174Top 35%
RT Renesas Technology: 1 patents #1,991 of 3,337Top 60%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
TC Toyo Advanced Technologies Co.: 1 patents #21 of 40Top 55%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
DA Daihen: 1 patents #169 of 305Top 60%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
HC Hitachi Automotive Engineering Co.: 1 patents #156 of 314Top 50%
JC J.S.T. Mfg. Co.: 1 patents #144 of 255Top 60%
KU Kyoto University: 1 patents #568 of 1,688Top 35%
BR Bell Communications Research: 1 patents #278 of 628Top 45%
MC Mitsubishi Rayon Engineering Co.: 1 patents #25 of 48Top 55%
NU National University Corporation Ehime University: 1 patents #37 of 160Top 25%
NS Nec Soft: 1 patents #14 of 38Top 40%
NI Nec Solution Innovators: 1 patents #69 of 178Top 40%
Overall (All Time): #10,641 of 4,157,543Top 1%
116
Patents All Time

Issued Patents All Time

Showing 1–25 of 116 patents

Patent #TitleCo-InventorsDate
12429812 Pressing mechanism, a process cartridge, and an image forming apparatus 2025-09-30
12309937 Motor control system, motor control device, and motor control method YUSUKE KUBOI, Kenta Murakami 2025-05-20
12241061 CAR library and scFv manufacturing method Toshiki Ochi, Masaki Yasukawa, Katsuto Takenaka 2025-03-04
12173472 Support structure for work vehicle and work vehicle Hironori Hirakawa, Satoshi Yamaki, Kiyoshi Ueda 2024-12-24
11791751 Motor control system, motor control method, and program Kenta Murakami 2023-10-17
11719306 Damping device Akira Furukawa 2023-08-08
11714377 Image forming apparatus with cover and restrictor to protect connection terminal 2023-08-01
11634024 Working machine Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai 2023-04-25
11569709 Motor drive device and servo adjustment method Yuya Sakamoto, Ken'ichi Suzuki 2023-01-31
11527778 All-solid-state battery and production method therefor Kazuhito KATO, Shinji Kojima, Katsuaki Odagi 2022-12-13
11513464 Image forming apparatus having an apparatus body and a detachable unit including a rotary body and drive gear Yasunobu Shimizu, Hiroshi Hosokawa, Kazuki Matsumoto 2022-11-29
11415948 Device for controlling electric motor Toru Tazawa 2022-08-16
11320805 Control device for electric motor Toru Tazawa 2022-05-03
11273703 Working machine Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai 2022-03-15
11217825 All solid-state battery, resin applicator, and method for producing all solid-state battery Yuichi Itoh, Yuto NARITA, Kazuhito KATO 2022-01-04
11155192 Foam molded article, method for manufacturing molded foam article, and seat for automobile 2021-10-26
11088397 All-solid-state battery and production method therefor Kazuhito KATO, Shinji Kojima, Katsuaki Odagi 2021-08-10
11003154 Motor control system Mitsutaka Okura, Akinobu Tomita, YOSHIAKI IKEUCHI 2021-05-11
10985683 Electric motor control device and electric motor control method Toru Tazawa, Fumitake Saegusa 2021-04-20
10767346 Work machine Keigo Honda, Yuji Fukuda, Takahiro Usami 2020-09-08
10715076 Motor control device and motor control method Toru Tazawa, Fumitake Saegusa 2020-07-14
10715075 Motor control device and motor control method Toru Tazawa, Fumitake Saegusa 2020-07-14
10703195 Working machine Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai 2020-07-07
10579038 Control apparatus of an electric motor Toru Tazawa, Masaru Nishizono 2020-03-03
10308108 Working machine Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai 2019-06-04