Watanabe; Keigo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Watanabe; Keigo.The latest application filed is for "rolling cylinder displacement compressor".

Company Profile

1.13.11

Watanabe; Keigo - Tokyo JP
Watanabe; Keigo - Tokyl JP
Watanabe; Keigo - Iwakuni JP
Watanabe, Keigo - Iwakuni-shi JP
Watanabe, Keigo - Yamaguchi JP
Watanabe; Keigo - Neyagawa JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Rolling cylinder displacement compressor Grant 10,801,483 - Tsubono , et al. October 13, 2	2020-10-13
Rolling Cylinder Displacement Compressor App 20200056600 - TSUBONO; Isamu ; et al.	2020-02-20
Cooking process of lignocellulose material Grant 9,145,642 - Kurosu , et al. September 29, 2	2015-09-29
Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper Grant 8,784,608 - Goto , et al. July 22, 2	2014-07-22
Cooking Process Of Lignocellulose Material App 20120067533 - Kurosu; Kazuhiro ; et al.	2012-03-22
Apparatus for treating papermaking feedstock Grant 8,123,909 - Onodera , et al. February 28, 2	2012-02-28
Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments Grant 8,088,254 - Goto , et al. January 3, 2	2012-01-03
Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper App 20110226428 - Goto; Shisei ; et al.	2011-09-22
Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper Grant 7,967,947 - Goto , et al. June 28, 2	2011-06-28
Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts, as well as pulp processing equipments App 20100147479 - GOTO; Shisei ; et al.	2010-06-17
Methods for producing recycled pulp and methods for modifying pulp fiber surfaces using liquid jet cavitation Grant 7,727,355 - Goto , et al. June 1, 2	2010-06-01
Method for recovering performance of electrolyzer for use in production of polysulfide and method for stopping holding electrolyzer App 20090242422 - Kurosu; Kazuhiro ; et al.	2009-10-01
Apparatus For Treating Papermaking Feedstock App 20090114360 - Onodera; Isao ; et al.	2009-05-07
Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness Grant 7,384,502 - Kamijo , et al. June 10, 2	2008-06-10
Methods for Beating Pulp, Methods for Treating Process Waters, and Methods for Producing Pulp and Paper App 20080078518 - Goto; Shisei ; et al.	2008-04-03
Methods for producing recycled pulp, methods for modifying pulp fiber surfaces and dirts as well as pulp processing equipments App 20070137804 - Goto; Shisei ; et al.	2007-06-21
Cooking method for pulp Grant 7,056,418 - Andoh , et al. June 6, 2	2006-06-06
Processes for preparing mechanical pulps having high brightness App 20040118529 - Kamijo, Yasuyuki ; et al.	2004-06-24
Cooking method for pulp App 20020088576 - Andoh, Tatsuya ; et al.	2002-07-11
Method for producing polysulfides by means of electronlytic oxidation App 20020053520 - Shimohira, Tetsuji ; et al.	2002-05-09
Coating apparatus Grant 5,145,528 - Watanabe , et al. September 8, 1	1992-09-08
Coating apparatus Grant 5,136,972 - Naka , et al. August 11, 1	1992-08-11

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