Inventor
YAZAWA TAKEHIKO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “YAZAWA TAKEHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIDEC SANKYO CORP
9 patentsUS10900578B2Jan 26, 2021
Valve drive device
NIDEC SANKYO CORP3 citations72
US10677333B2Jun 9, 2020
Rotation transmission mechanism and damper device
NIDEC SANKYO CORP2 citations72
US12418209B2Sep 16, 2025
Motor and pump system
NIDEC SANKYO CORP0 citations62
US11876420B2Jan 16, 2024
Motor and pump system
NIDEC SANKYO CORP0 citations62
US10876781B2Dec 29, 2020
Switch mechanism, geared motor and damper device
NIDEC SANKYO CORP1 citations62
US11982278B2May 14, 2024
Pump device
NIDEC SANKYO CORP0 citations52
US11215390B2Jan 4, 2022
Drive device with abnormality detection mechanism and damper device
NIDEC SANKYO CORP0 citations51
US11199040B2Dec 14, 2021
Rotation transmission mechanism and damper device
NIDEC SANKYO CORP0 citations51
US11022362B2Jun 1, 2021
Damper device
NIDEC SANKYO CORP0 citations51
SANKYO SEIKI SEISAKUSHO KK
6 patentsUS5980819ANov 9, 1999
Sintered oil-impregnated bearing, manufacturing method thereof, and motor comprising same
SANKYO SEIKI SEISAKUSHO KK26 citations92
US6375357B2Apr 23, 2002
Spindle motor
SANKYO SEIKI SEISAKUSHO KK39 citations91
US6343877B1Feb 5, 2002
Spindle motor
SANKYO SEIKI SEISAKUSHO KK20 citations91
US6341896B1Jan 29, 2002
Hydrodynamic bearing and method of manufacturing the same
SANKYO SEIKI SEISAKUSHO KK9 citations72
US6378209B1Apr 30, 2002
Method of producing fluid bearing device
SANKYO SEIKI SEISAKUSHO KK13 citations70
US6614139B2Sep 2, 2003
Motor having a dynamic pressure bearing apparatus and a manufacturing method thereof
SANKYO SEIKI SEISAKUSHO KK6 citations62
NIDEC INSTRUMENTS CORP
4 patentsUS12460652B2Nov 4, 2025
Pump device and method of manufacturing the same
NIDEC INSTRUMENTS CORP0 citations51
US12345265B2Jul 1, 2025
Pump apparatus
NIDEC INSTRUMENTS CORP0 citations51
US12253094B2Mar 18, 2025
Pump device
NIDEC INSTRUMENTS CORP0 citations51
US12419002B2Sep 16, 2025
Fixing structure of circuit board and pump device
NIDEC INSTRUMENTS CORP0 citations50