YK

Yasuhiro Kawaguchi

IC Idemitsu Kosan Co.: 13 patents #105 of 1,237Top 9%
KC Kitagawa Industries Co.: 13 patents #5 of 112Top 5%
SC Sekisui Chemical Co.: 6 patents #106 of 908Top 15%
SE Seiko Epson: 2 patents #4,555 of 7,774Top 60%
ML Mitsubishi Paper Mills Limited: 2 patents #171 of 458Top 40%
TC Tokuyama Sekisui Co.: 2 patents #10 of 27Top 40%
DC Dainippon Screen Mfg. Co.: 2 patents #346 of 977Top 40%
TY Tyk: 1 patents #7 of 20Top 35%
NC Nippon Shokubai Co.: 1 patents #656 of 1,108Top 60%
Overall (All Time): #96,933 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
5887214 Apparatus for processing photosensitive material Sadao Kuriu, Kyonosuke Yamamoto, Jun Urasaki, Yoshikazu Takano, Tsuyoshi Harada +5 more 1999-03-23
5839011 Apparatus for processing photosensitive material Jun Urasaki, Yoshikazu Takano, Akira Kunihiro, Eiji Miyasaka, Masaharu Kimura 1998-11-17
5616812 Method of producing a polyvinyl ether compound Tatsuya Egawa, Kenji Mogami, Nobuaki Shimizu 1997-04-01
5589597 Process of producing ether compound Tatsuya Egawa, Kenji Mogami, Nobuaki Shimizu 1996-12-31
5536881 Lubricating oil for compression-type refrigerators and polyoxyalkylene glycol derivatives Nobuaki Shimizu, Masato Kaneko 1996-07-16
5523491 Process of producting ether compound Tatsuya Egawa, Kenji Mogami, Nobuaki Shimizu 1996-06-04
5518643 Lubricating oil containing a polyvinyl ether compound for compression-type refrigerators Tatsuya Egawa, Kenji Mogami, Nobuaki Shimizu 1996-05-21
5449472 Lubricating oil for compression-type refrigerators Tatsuya Egawa, Kenji Mogami, Nobuaki Shimizu 1995-09-12
5399631 Polyvinyl ether compound Tatsuya Egawa, Kenji Mogami, Nobuaki Shimizu 1995-03-21
5269955 Lubricating oil for compression-type refrigerators and polyoxyalkylene glycol derivative Nobuaki Shimizu, Masato Kaneko 1993-12-14