Inventor
MATSUMOTO MASAYASU
11 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMOTO MASAYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRIDGESTONE TIRE CO LTD
5 patentsUS4160491AJul 10, 1979
Perlite sound absorbing plate and sound insulating wall composed of the same
BRIDGESTONE TIRE CO LTD53 citations94
US4113053ASep 12, 1978
Sound absorbing body
BRIDGESTONE TIRE CO LTD40 citations92
US4158401AJun 19, 1979
Device for controlling a propagation direction of noise
BRIDGESTONE TIRE CO LTD39 citations91
US4069768AJan 24, 1978
Device for controlling a propagation direction of noise
BRIDGESTONE TIRE CO LTD30 citations81
US4156476AMay 29, 1979
Noise control devices
BRIDGESTONE TIRE CO LTD13 citations72
DUPLO SEIKO CORP
3 patentsUS10272583B2Apr 30, 2019
Slitter, sheet cutting device, and sheet processing apparatus
DUPLO SEIKO CORP6 citations71
US11325798B2May 10, 2022
Feeding device and sheet processing device with the same
DUPLO SEIKO CORP1 citations52
US11052630B2Jul 6, 2021
Sheet processor and sheet processing apparatus
DUPLO SEIKO CORP0 citations50