TY

Tsutomu Yamaguchi

KS Kawai Gakki Seisakusho: 4 patents #1 of 4Top 25%
Mitsubishi Electric: 2 patents #196 of 1,971Top 10%
Overall (2025): #14,272 of 469,880Top 4%
6
Patents 2025

Issued Patents 2025

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12412554 Key guide structure for keyboard instrument 2025-09-09
12334712 Optical semiconductor integrated element and method of manufacturing optical semiconductor integrated element 2025-06-17
12223934 Keyboard device for keyboard instrument 2025-02-11
12205568 Keyboard device for keyboard instrument 2025-01-21
12199410 Semiconductor device and method for producing the same 2025-01-14
12190853 Keyboard device for keyboard instrument 2025-01-07