P

Inventor

TAKEYAMA YOSHIHISA

JP13 patents
⚠️ This page may combine multiple inventors who share the name “TAKEYAMA YOSHIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZEON CORP

8 patents
US12215825B2Feb 4, 2025

High-pressure hydrogen apparatus gas seal member and high-pressure hydrogen apparatus

ZEON CORP0 citations61
US11584831B2Feb 21, 2023

Method of producing slurry, method of producing composite resin material, and method of producing shaped product

ZEON CORP0 citations61
US11186698B2Nov 30, 2021

Rubber composition

ZEON CORP0 citations61
US10982083B2Apr 20, 2021

Fluorinated elastomer composition and shaped article

ZEON CORP1 citations60
US12031082B2Jul 9, 2024

Seal material

ZEON CORP0 citations56
US11161946B2Nov 2, 2021

Method of producing composite resin material and method of producing shaped product

ZEON CORP0 citations53
US10717850B2Jul 21, 2020

Composition for gas seal member and gas seal member

ZEON CORP0 citations49
US8013090B2Sep 6, 2011

Film comprising norbornene compound addition polymer

ZEON CORP0 citations40

TSUNOGAE YASUO

2 patents
US8889806B2Nov 18, 2014

Ring-opening polymer of cyclopentene and method of production of same

TSUNOGAE YASUO9 citations81
US9045617B2Jun 2, 2015

Ring-opening polymer of cyclopentene and method of production of same

TSUNOGAE YASUO0 citations49

UNIV KYUSHU NAT UNIV CORP

2 patents
US11649387B2May 16, 2023

Gas seal member for high-pressure hydrogen device, and high-pressure hydrogen device

UNIV KYUSHU NAT UNIV CORP0 citations61
US11448319B2Sep 20, 2022

Composition for gas seal member and method of producing same, gas seal member for high-pressure hydrogen device, and high-pressure hydrogen device

UNIV KYUSHU NAT UNIV CORP1 citations61

TAKEYAMA YOSHIHISA

1 patent
US8609005B2Dec 17, 2013

Stretched film of addition polymer consisting of norbornene compound, process for producing the same and use thereof

TAKEYAMA YOSHIHISA6 citations65