Inventor
YAMASHITA WATARU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA WATARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI TOATSU CHEMICALS
13 patentsUS5719256AFeb 17, 1998
Process for preparing polycondensation polymer compound
MITSUI TOATSU CHEMICALS20 citations92
US5470943ANov 28, 1995
Polyimide
MITSUI TOATSU CHEMICALS27 citations92
US5354839AOct 11, 1994
Polyimide and preparation process of same
MITSUI TOATSU CHEMICALS23 citations92
US5508377AApr 16, 1996
Polyimide
MITSUI TOATSU CHEMICALS13 citations74
US5480965AJan 2, 1996
Readily soluble, amorphous polyimide, and preparation process of same
MITSUI TOATSU CHEMICALS14 citations73
US5260388ANov 9, 1993
Polyimide and process for the preparation thereof
MITSUI TOATSU CHEMICALS9 citations73
US5283313AFeb 1, 1994
Readily processable polyimide, preparation process of polyimide, and resin composition of polyimide
MITSUI TOATSU CHEMICALS5 citations63
US5506291AApr 9, 1996
Polyimide resin composition having excellent fatigue resistance and injection molded article of same
MITSUI TOATSU CHEMICALS3 citations62
US5494996AFeb 27, 1996
Polyimide resin composition
MITSUI TOATSU CHEMICALS4 citations62
US5484880AJan 16, 1996
Polyimide
MITSUI TOATSU CHEMICALS4 citations62
US5763537AJun 9, 1998
Polyimide based resin composition
MITSUI TOATSU CHEMICALS2 citations61
US5371168ADec 6, 1994
Amorphous polyimide powder, preparation process of the powder, and heat-resistant adhesive and bonding method by use of the powder
MITSUI TOATSU CHEMICALS1 citations52
US5354890AOct 11, 1994
Aromatic diamine intermediates useful in the preparation of polyimides
MITSUI TOATSU CHEMICALS0 citations52
MITSUI CHEMICALS INC
9 patentsUS6734276B2May 11, 2004
Polyimide and circuit substrate comprising the same
MITSUI CHEMICALS INC19 citations92
US6080833AJun 27, 2000
Low-birefringent organic optical component and a spirobiindan polymer
MITSUI CHEMICALS INC51 citations92
US6710160B2Mar 23, 2004
Polyamic acid, polyimide, process for producing these, and film of the polyimide
MITSUI CHEMICALS INC17 citations83
US5990261ANov 23, 1999
Organic optical component
MITSUI CHEMICALS INC6 citations73
US5916488AJun 29, 1999
Polyimide resin compositions for optical filters
MITSUI CHEMICALS INC5 citations73
US5868968AFeb 9, 1999
Polyimide resin compositions for optical filters
MITSUI CHEMICALS INC5 citations73
US6103860AAug 15, 2000
Fluorine-containing polyamide
MITSUI CHEMICALS INC3 citations62
US5892061AApr 6, 1999
Process for preparing isoimides
MITSUI CHEMICALS INC2 citations61
US7666573B2Feb 23, 2010
Positive photosensitive resin composition and method for forming pattern
MITSUI CHEMICALS INC1 citations50
FUKUKAWA KENICHI
3 patentsUS9339992B2May 17, 2016
Low-thermal-expansion block polyimide, precursor thereof, and use thereof
FUKUKAWA KENICHI3 citations69
US9540487B2Jan 10, 2017
Polyimide composite material and film thereof
FUKUKAWA KENICHI0 citations48
US9752030B2Sep 5, 2017
Polyamic acid and polyimide, processes for the production of same, compositions containing same, and uses thereof
FUKUKAWA KENICHI0 citations38