Inventor
KAGAWA YOICHIRO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KAGAWA YOICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KAGAWA SEIJI
13 patentsUS5648107AJul 15, 1997
Porous film manufacturing apparatus
KAGAWA SEIJI36 citations92
US5451257ASep 19, 1995
Porous film and porous film manufacturing apparatus
KAGAWA SEIJI9 citations73
US10744665B2Aug 18, 2020
Apparatus for producing microporous plastic film
KAGAWA SEIJI3 citations72
US9889479B2Feb 13, 2018
Method for producing porous metal foil
KAGAWA SEIJI2 citations72
US9096013B2Aug 4, 2015
Apparatus for forming slant, linear easy-to-tear portions on long plastic film
KAGAWA SEIJI5 citations72
US9238351B2Jan 19, 2016
Composite film of linearly-scratched, thin metal film and plastic film, and its production apparatus
KAGAWA SEIJI2 citations62
US7938998B2May 10, 2011
Easy-to-straight-tearing thermoplastic resin film and its production method and apparatus
KAGAWA SEIJI5 citations62
US10940618B2Mar 9, 2021
Apparatus for producing microporous plastic film
KAGAWA SEIJI0 citations51
US9968975B2May 15, 2018
Method and apparatus for producing microporous metal foil
KAGAWA SEIJI0 citations51
US9616640B2Apr 11, 2017
Composite film of linearly-scratched, thin metal film and plastic film, and its production apparatus
KAGAWA SEIJI1 citations51
US10538026B2Jan 21, 2020
Apparatus for producing microporous plastic film
KAGAWA SEIJI0 citations41
US10538027B2Jan 21, 2020
Apparatus for producing easy-to-tear plastic film
KAGAWA SEIJI0 citations41
US10283284B2May 7, 2019
Method and apparatus for producing microporous metal foil
KAGAWA SEIJI0 citations41