Inventor
KOTANI TOMOYUKI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KOTANI TOMOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DIAFOIL CO LTD
6 patentsUS4871784AOct 3, 1989
Minute-cellular polyester film
DIAFOIL CO LTD67 citations95
US5071690ADec 10, 1991
Moldable biaxially stretched polyester film
DIAFOIL CO LTD28 citations92
US4985537AJan 15, 1991
Process of making a biaxially stretched polyester film and biaxially stretched polyester film
DIAFOIL CO LTD23 citations92
US5093064AMar 3, 1992
Low-shrinkage polyester film and preparation thereof
DIAFOIL CO LTD17 citations81
USRE34727ESep 13, 1994
Low-shrinkage polyester film and preparation thereof
DIAFOIL CO LTD4 citations62
US5045379ASep 3, 1991
Polyester film for high density magnetic recording medium
DIAFOIL CO LTD6 citations62
DIAFOIL HOECHST CO LTD
3 patentsUS5429855AJul 4, 1995
Biaxially oriented laminated polyester film for magnetic recording media
DIAFOIL HOECHST CO LTD26 citations92
US5670236ASep 23, 1997
Biaxially oriented polyester film for magnetic recording medium
DIAFOIL HOECHST CO LTD9 citations73
US5364698ANov 15, 1994
Laminated polyester film for magnetic recording medium
DIAFOIL HOECHST CO LTD12 citations73
MITSUBISHI CHEM CORP
2 patentsUS10087075B2Oct 2, 2018
Partially cyclized polyacrylonitrile polymer, polyacrylonitrile flame-resistant polymer, polyacrylonitrile flame-resistant fiber, carbon fiber, and preparation methods thereof
MITSUBISHI CHEM CORP2 citations70
US10975501B2Apr 13, 2021
Carbon material and production method for same
MITSUBISHI CHEM CORP0 citations56