TF

Tatsumi Fujiyoshi

AC Alps Electric Co.: 16 patents #64 of 2,177Top 3%
AC Alps Alpine Co.: 14 patents #10 of 525Top 2%
FI Frontec Incorporated: 3 patents #12 of 40Top 30%
LC Lg Philips Lcd Co.: 3 patents #308 of 888Top 35%
LC Lg. Philips Co.: 1 patents #3 of 33Top 10%
📍 Rifu, JP: #83 of 2,101 inventorsTop 4%
Overall (All Time): #101,306 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
12386464 Proximity detection device Hiroshi Shigetaka 2025-08-12
12174047 Capacitance detection device and capacitance detection method Atsushi Matsuda 2024-12-24
12019109 Capacitance detection device and capacitance detection method 2024-06-25
11599222 Detection device 2023-03-07
11511605 Operation input device and door handle Hiroshi Shigetaka, Daisuke Takai 2022-11-29
11379086 Proximity detecting device having obliquely crossing detection electrode group 2022-07-05
11327100 Electrostatic sensor and door handle Takashi Sasaki, Tomoki Yamada 2022-05-10
11188166 Input device Hiroshi Shigetaka 2021-11-30
11131566 Electrostatic sensor 2021-09-28
11112920 Input device and image data calculation method Tomoki Yamada 2021-09-07
10942613 Input device and method of controlling the same 2021-03-09
10817114 Capacitance detection device for detecting capacitance between object proximate to detection electrode and the detection electrode and input device used for inputting information according to proximity of object Kiyoshi Sasai, Shinichi Sagawai 2020-10-27
10511290 Sine-wave multiplier and input device including the same Akira Asao, Kiyoshi Sasai 2019-12-17
10331409 Sine wave multiplication device and input device having the same Shinichi Sagawai, Kiyoshi Sasai 2019-06-25
10152186 Input device for detecting an electrostatic capacitance of an object Yasuhiko Hiratate 2018-12-11
9678191 Electrostatic capacitance detection circuit and input device 2017-06-13
8653836 Coordinate detecting device Naoyuki Hatano, Hiroshi Izumi 2014-02-18
8339350 Image display method and apparatus 2012-12-25
7570789 Charge detecting circuit and fingerprint sensor using the same 2009-08-04
7336254 Shift register that suppresses operation failure due to transistor threshold variations, and liquid crystal driving circuit including the shift register Chisato Iwasaki, Yukimitsu Yamada, Koji Kikuchi 2008-02-26
7102364 Capacitance detecting circuit and detecting method, and fingerprint sensor employing the same Yuichi Umeda, Ken Kawahata 2006-09-05
6922189 Image-signal driving circuit eliminating the need to change order of inputting image data to source driver 2005-07-26
6744216 Display device requiring no scramble circuit Junichi Saito, Yukimitsu Yamada 2004-06-01
6624825 Pixel resolution converting circuit and image display device using the same 2003-09-23
6593939 Image display device and driver circuit therefor Yukimitsu Yamada, Ken Kawahata, Hiroyuki Hebiguchi, Junichi Saito 2003-07-15