TA

Takao Akiyama

ME Meidensha: 33 patents #1 of 555Top 1%
SI Seiko Instruments: 2 patents #605 of 1,437Top 45%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
NI Ngk Insulators: 1 patents #1,271 of 2,083Top 65%
NE Nec: 1 patents #7,889 of 14,502Top 55%
NU National University Corporation Chiba University: 1 patents #100 of 320Top 35%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #75,527 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 1–25 of 41 patents

Patent #TitleCo-InventorsDate
11879807 System identification method, system identification device, and program 2024-01-23
11733671 Testing system having a control device Masayasu Kanke 2023-08-22
11441971 Testing system 2022-09-13
11371912 Mechanical characteristics estimation method and mechanical characteristics estimation device of test system 2022-06-28
11313761 Test system 2022-04-26
11313762 Dynamometer control device 2022-04-26
11280702 Tandom motor system 2022-03-22
11262274 Method for designing shaft torque controller and feedback controller of test system, and shaft torque controller designed on basis of same design method 2022-03-01
11150150 Dynamometer control device 2021-10-19
11105701 Dynamometer control device 2021-08-31
11085851 Method for calculating estimation value of mechanical characteristic parameter 2021-08-10
11029233 Input/output characteristic estimation method for drivetrain testing system 2021-06-08
10948383 Method for controlling engine bench system 2021-03-16
10942091 Control device of dynamometer system Tomoaki Kimura 2021-03-09
10895511 Dynamometer system Takashi Yamaguchi 2021-01-19
10892695 Motor drive system Yugo Tadano, Takashi Yamaguchi 2021-01-12
10605689 Test piece characteristic estimation method and test piece characteristic estimation device 2020-03-31
10558179 Shaft torque control device Takashi Yamaguchi, Kang-Zhi Liu, Sho Shimonomura 2020-02-11
10444117 Resonance suppression control circuit and testing system employing same, and method of designing resonance suppression control circuit 2019-10-15
10371589 Control device for dynamometer system Nobuhiko Asakura 2019-08-06
10190944 Dynamometer-system dynamo control device and engine starting method therefor 2019-01-29
10151666 Torque command generation device Masayasu Kanke, Masami Nishihara, Kenji Kawakubo 2018-12-11
10041858 Dynamometer control device and method for estimating moment of inertia using same Nobuhiko Asakura 2018-08-07
9778140 Engine testing apparatus, and engine testing method Yasuaki Suzuki, Takuya Kusakabe, Masato Hayasaka, Yoshinao Sato, Nobuhiko Asakura +4 more 2017-10-03
9739687 Dynamometer system Yoshimasa Sawada, Nobuhiko Asakura 2017-08-22