P

Inventor

TAKAHASHI TAKEO

JP67 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI TAKEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KUREHA CORP

14 patents
US9714551B2Jul 25, 2017

Plug for well drilling process provided with mandrel formed from degradable material

KUREHA CORP25 citations94
US7455772B2Nov 25, 2008

Hollow-fiber porous water filtration membrane of vinylidene fluoride resin and process for producing the same

KUREHA CORP30 citations92
US7351338B2Apr 1, 2008

Porous membrane of vinylidene fluoride resin and process for producing the same

KUREHA CORP29 citations92
US10208559B2Feb 19, 2019

Diameter-expandable annular degradable seal member for downhole tool, plug for well drilling, and method for well drilling

KUREHA CORP9 citations84
US7172810B2Feb 6, 2007

Resin compositions, monofilaments, process for producing the same and fishing lines

KUREHA CORP13 citations83
US10738561B2Aug 11, 2020

Stock shape for downhole tool component, downhole tool component, and downhole tool

KUREHA CORP6 citations73
US10619084B2Apr 14, 2020

Plug for well drilling provided with diametrically expandable annular rubber member formed from degradable rubber material

KUREHA CORP5 citations73
US10280699B2May 7, 2019

Degradable rubber member for downhole tools, degradable seal member, degradable protecting member, downhole tool, and method for well drilling

KUREHA CORP4 citations73
US10030465B2Jul 24, 2018

Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing same

KUREHA CORP3 citations73
US9879500B2Jan 30, 2018

Well treatment method by disintegrating elastic material by contacting seal member for downhole tools comprising elastic material with well treatment fluid

KUREHA CORP2 citations73
US7780014B2Aug 24, 2010

Porous water filtration membrane of vinylidene fluoride resin hollow fiber and process for production thereof

KUREHA CORP2 citations62
US7569145B2Aug 4, 2009

Vinylidene fluoride based resin porous hollow yarn and method for production thereof

KUREHA CORP3 citations62
US10414851B2Sep 17, 2019

Rubber member for downhole tools, downhole tool, and method for recovering hydrocarbon resource

KUREHA CORP0 citations52
US10072476B2Sep 11, 2018

Poly-L-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the same

KUREHA CORP1 citations52

TOSHIBA KK

5 patents

FUJITSU LTD

3 patents

SANDEN CORP

3 patents

FUJI ELECTRIC CO LTD

3 patents

TAKAHASHI TAKEO

3 patents

OLYMPUS OPTICAL CO

2 patents

HITACHI LTD

2 patents

SUMITOMO CHEMICAL CO

2 patents

SASANUMA TAKESHI

2 patents

IZUMORI KEN

1 patent

(unassigned)

1 patent

SATO KK

1 patent

KABUSHIKIGAISHA SOGO IKAGAKU K

1 patent

UEDA SATOSHI

1 patent

SEKISUI CHEMICAL CO LTD

1 patent

TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP

1 patent

FUJITSU MEDIA DEVICES LTD

1 patent

FUSHIMI PHARMACEUTICAL CO LTD

1 patent

NEMOTO KUNIYOSHI

1 patent

MURAKAMI YUYA

1 patent

Showing the top 50 of 67 patents by PatentIndex Score.