Tomei Sangyo Kabushiki Kaisha

Patent Applications and Registrations

Patent applications and USPTO patent grants for Tomei Sangyo Kabushiki Kaisha.The latest application filed is for "method for cleaning and disinfecting contact lens".

Company Profile

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Tomei Sangyo Kabushiki Kaisha - Nagoya JP
Tomei Sangyo Kabushiki Kaisha - Aichi JP
Tomei Sangyo Kabushiki Kaisha - JP 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
Method for cleaning and disinfecting contact lens Grant 5,487,788 - Kamiya , et al. January 30, 1	1996-01-30
Method for cleaning or preserving a contact lens by means of liquid composition Grant 5,460,658 - Nakagawa , et al. October 24, 1	1995-10-24
Method for cleaning, preserving and disinfecting contact lenses Grant 5,409,546 - Nakagawa , et al. April 25, 1	1995-04-25
Method for imparting a hydrophilic nature to a contact lens Grant 5,409,731 - Nakagawa , et al. April 25, 1	1995-04-25
Method for cleaning and disinfecting soft contact lens and treating solution for soft contact lenses Grant 5,314,590 - Kamiya , et al. May 24, 1	1994-05-24
Detergent for contact lens comprising a water-soluble compound and a copolymer of polyhydric alcohol and a cross-linked acrylic acid and a method for washing contact lens Grant 5,302,312 - Kawai , et al. April 12, 1	1994-04-12
Graft copolymer, solution containing the graft copolymer for treating contact lens, and method of treating contact lens with the solution and making hydrophilic lens surface Grant 5,206,298 - Kawaguchi April 27, 1	1993-04-27
Hard contact lens material Grant 5,142,009 - Kawaguchi August 25, 1	1992-08-25
Liquid purifying device Grant 4,940,542 - Simizu , et al. July 10, 1	1990-07-10
Soft ocular lens and method for its preparation Grant 4,904,421 - Ando , et al. February 27, 1	1990-02-27
Electrolytic sterilizer for contact lenses Grant 4,512,865 - Yamauchi April 23, 1	1985-04-23

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