SY

Sadayuki Yaginuma

AC Alps Alpine Co.: 6 patents #37 of 525Top 8%
AC Alps Electric Co.: 2 patents #822 of 2,177Top 40%
Overall (All Time): #598,113 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12242675 Multi-way input device Kunio HOSONO, Yasuji Hagiwara, Tetsuo Muranaka 2025-03-04
12088986 Input device Kunio HOSONO, Tetsuo Muranaka, Yasuji Hagiwara 2024-09-10
11740649 Multidirectional input device Kunio HOSONO, Masaru Komatsu, Yasuji Hagiwara 2023-08-29
11417478 Multidirectional input apparatus with switch and multidirectional input system with switch Kunio HOSONO, Tetsuo Muranaka, Yasuji Hagiwara 2022-08-16
11221640 Multidirectional input device Tetsuo Muranaka, Kunio HOSONO, Yasuji Hagiwara 2022-01-11
11042179 Multidirectional input device Tetsuo Muranaka, Kunio HOSONO, Yasuji Hagiwara 2021-06-22
6909062 Key-switch device corresponding to miniaturized notebook-size personal computer with reduced-thickness Tsuyoshi Narusawa, Kazuhiro Yakoyama, Takayuki Ito 2005-06-21
6777634 Key-switch device corresponding to miniaturized notebook-size personal computer with reduced-thickness Tsuyoshi Narusawa, Kazuhiro Yakoyama, Takayuki Ito 2004-08-17