P

Inventor

IMAIZUMI HIRONOBU

JP7 patents
⚠️ This page may combine multiple inventors who share the name “IMAIZUMI HIRONOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NHK SPRING CO LTD

4 patents
US9400027B2Jul 26, 2016

Coned disc spring

NHK SPRING CO LTD23 citations90
US7971690B2Jul 5, 2011

Coned disc spring

NHK SPRING CO LTD2 citations59
US12442425B2Oct 14, 2025

Spring member

NHK SPRING CO LTD0 citations51
US7997242B2Aug 16, 2011

Spring retainer and spring system

NHK SPRING CO LTD1 citations50

AISIN AW CO

1 patent
US7438168B2Oct 21, 2008

Cushion plate

AISIN AW CO5 citations61

OGAWA YUKITOSHI

1 patent
US8091873B2Jan 10, 2012

Coned disc spring

OGAWA YUKITOSHI5 citations56

IMAIZUMI HIRONOBU

1 patent
US8297603B2Oct 30, 2012

Spring retainer and spring system

IMAIZUMI HIRONOBU4 citations55