P

Inventor

OKAMOTO MASAHIKO

JP22 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO MASAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MITSUI CHEMICALS INC

12 patents
US7700708B2Apr 20, 2010

Ethylene polymer and application thereof to moldings

MITSUI CHEMICALS INC12 citations82
US7847040B2Dec 7, 2010

α-olefin-based polymer composition, molded product formed from the composition, and novel polymer

MITSUI CHEMICALS INC7 citations72
US9902847B2Feb 27, 2018

4-methyl-1-pentene (co)polymer composition, and film and hollow molded product composed of the composition

MITSUI CHEMICALS INC3 citations70
US7879960B2Feb 1, 2011

Process for producing propylene polymer

MITSUI CHEMICALS INC5 citations61
US10662270B2May 26, 2020

4-methyl-1-pentene/α-olefin copolymer, composition comprising the copolymer and 4-methyl-1-pentene copolymer composition

MITSUI CHEMICALS INC1 citations59
US8008401B2Aug 30, 2011

Polyolefin composition

MITSUI CHEMICALS INC2 citations59
US12091536B2Sep 17, 2024

Resin composition containing 4-methyl-1-pentene copolymer, and film for capacitors

MITSUI CHEMICALS INC1 citations58
US12240930B2Mar 4, 2025

Cyclic olefin-based copolymer, cyclic olefin-based copolymer composition, molded article, and medical container

MITSUI CHEMICALS INC0 citations56
US11732075B2Aug 22, 2023

Cyclic olefin-based copolymer, cyclic olefin-based copolymer composition, molded article, and medical container

MITSUI CHEMICALS INC0 citations56
US11248069B2Feb 15, 2022

4-methyl-1-pentene polymer, resin composition and molded article

MITSUI CHEMICALS INC0 citations52
US12168738B2Dec 17, 2024

Adhesive resin compositions and laminates

MITSUI CHEMICALS INC0 citations44
US10870738B2Dec 22, 2020

Polyester sheet

MITSUI CHEMICALS INC0 citations33

YAMAMOTO KOGAKU

3 patents
US6613433B2Sep 2, 2003

Polarizing optical composite and polarizing lens

YAMAMOTO KOGAKU109 citations97
US5702813ADec 30, 1997

Composite molded article including a polarizer of polycarbonate

YAMAMOTO KOGAKU88 citations93
US6455163B1Sep 24, 2002

Transparent optical article

YAMAMOTO KOGAKU25 citations92

OKAMOTO MASAHIKO

3 patents
US9023906B2May 5, 2015

Propylene-based copolymer, propylene-based copolymer composition, molded product thereof and foamed product thereof, and production process therefor

OKAMOTO MASAHIKO12 citations80
US8129489B2Mar 6, 2012

Ethylene polymer and use thereof

OKAMOTO MASAHIKO15 citations80
US8802779B2Aug 12, 2014

Propylene-based polymer composition, use thereof, and method for producing thermoplastic polymer composition

OKAMOTO MASAHIKO4 citations71

YAMAMOTO KOGAKU KABUSHIKI KAIS

1 patent
US6165392ADec 26, 2000

Method and apparatus for manufacturing lenses and a lens manufactured thereby

YAMAMOTO KOGAKU KABUSHIKI KAIS36 citations86

UEKUSA TAKAYUKI

1 patent
US9725540B2Aug 8, 2017

4-methyl-1-pentene/α-olefin copolymer, composition comprising the copolymer and 4-methyl-1-pentene copolymer composition

UEKUSA TAKAYUKI8 citations76

TOHI YASUSHI

1 patent
US9382356B2Jul 5, 2016

Catalyst for olefin polymerization, method for producing olefin polymer, method for producing propylene-based copolymer, propylene polymer, propylene-based polymer composition, and use of those

TOHI YASUSHI5 citations67

MORI RYOJI

1 patent
US8329825B2Dec 11, 2012

Material for vibration control, article for vibration control and multilayer laminate for vibration control

MORI RYOJI4 citations61