YW

Yasushi Washio

TC Tokyo Ohka Kogyo Co.: 11 patents #109 of 684Top 20%
SA Showa Aluminum: 2 patents #70 of 253Top 30%
Overall (All Time): #381,289 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
9557651 Chemically amplified positive-type photosensitive resin composition Shota Katayama, Takahiro Shimizu 2017-01-31
9244354 Method for producing thick film photoresist pattern Tomoyuki Ando, Eiichi Shimura, Toshiaki Tachi 2016-01-26
9091916 Positive-type photoresist composition, photoresist laminate, method for producing photoresist pattern, and method for producing connecting terminal Takahiro Shimizu, Yasushi Kuroiwa, Takayoshi Mori, Yoshiyuki Utsumi 2015-07-28
8507180 Chemically amplified positive-type photoresist composition for thick film, chemically amplified dry film for thick film, and method for production of thick film resist pattern Mitsuaki Ohgake, Kazuhide Uno, Koichi Misumi, Takahiro Senzaki, Koji Saito 2013-08-13
8455058 Resin composition and coating method using the same Takahiro Senzaki, Kazuhide Uno 2013-06-04
8105763 Method of forming plated product using negative photoresist composition and photosensitive composition used therein Yasuo Masuda, Koji Saito 2012-01-31
7879525 Chemically amplified photoresist composition, laminated product, and connection element Koji Saito 2011-02-01
7846640 Developer composition for resists and method for formation of resist pattern Koji Saito 2010-12-07
7598014 Thick film photoresist composition and method of forming resist pattern Koji Saito 2009-10-06
7335465 Developer composition for resists and method for formation of resist pattern Koji Saito 2008-02-26
6838229 Chemically amplified negative photoresist composition for the formation of thick films, photoresist base material and method of forming bumps using the same Koji Saito, Toshiki Okui, Hiroshi Komano 2005-01-04
6214135 Entry board for drilling small holes, a method of making the same and a method for drilling small holes through a printed circuit board by using said entry board Koji Miyano, Akio Fukuda 2001-04-10
6000886 Entry board for drilling small holes, a method of making the same and a method for drilling small holes through a printed circuit board by using said entry board Koji Miyano, Akio Fukuda 1999-12-14