Inventor
ASHIZAWA HISAYUKI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “ASHIZAWA HISAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV TOKYO
9 patentsUS11552579B2Jan 10, 2023
Vibrational energy harvester element
UNIV TOKYO2 citations71
US11848614B2Dec 19, 2023
Power supply circuit and vibration-driven energy harvester
UNIV TOKYO0 citations62
US11664749B2May 30, 2023
Power supply circuit and vibration-driven energy harvester
UNIV TOKYO0 citations62
US10840827B2Nov 17, 2020
Vibration energy harvester
UNIV TOKYO1 citations61
US11716033B2Aug 1, 2023
Vibration-driven energy harvesting element and vibration-driven energy harvesting device
UNIV TOKYO0 citations51
US11489460B2Nov 1, 2022
Vibration-driven energy harvester
UNIV TOKYO0 citations51
US11451167B2Sep 20, 2022
Vibration-driven energy harvesting device and vibration-driven energy harvester
UNIV TOKYO0 citations51
US10833607B2Nov 10, 2020
Electret element, electromechanical converter and method for manufacturing electret element
UNIV TOKYO0 citations51
US9915576B2Mar 13, 2018
Pressure sensor and pressure detection device
UNIV TOKYO1 citations51
SAGINOMIYA SEISAKUSHO INC
7 patentsUS12395099B2Aug 19, 2025
Energy harvesting element and energy harvesting device
SAGINOMIYA SEISAKUSHO INC0 citations60
US11848627B2Dec 19, 2023
MEMS beam structure and mems vibration-driven energy harvesting element
SAGINOMIYA SEISAKUSHO INC0 citations60
US12184204B2Dec 31, 2024
Vibration-driven energy harvesting device
SAGINOMIYA SEISAKUSHO INC0 citations58
US12398032B2Aug 26, 2025
MEMS element and vibration-driven energy harvesting device
SAGINOMIYA SEISAKUSHO INC0 citations50
US12381492B2Aug 5, 2025
Vibration-driven energy harvesting element and method for manufacturing the same
SAGINOMIYA SEISAKUSHO INC0 citations50
US12160186B2Dec 3, 2024
MEMS element and vibration-driven energy harvesting device
SAGINOMIYA SEISAKUSHO INC0 citations50
US12308766B2May 20, 2025
Measurement system and diagnosis system
SAGINOMIYA SEISAKUSHO INC0 citations48