Kawashima; Masahisa

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kawashima; Masahisa.The latest application filed is for "digital credential issuing system and method".

Company Profile

1.6.6

Kawashima; Masahisa - Palo Alto CA
Kawashima; Masahisa - Tokyo N/A 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
Security system and method for internet of things infrastructure elements Grant 10,389,753 - Kawashima , et al. A	2019-08-20
Security System And Method For Internet Of Things Infrastructure Elements App 20180212768 - Kawashima; Masahisa ; et al.	2018-07-26
Digital Credential Issuing System And Method App 20180212941 - Yamamoto; Go ; et al.	2018-07-26
Certificate authenticating method, certificate issuing device, and authentication device Grant 8,775,796 - Karasawa , et al. July 8, 2	2014-07-08
Certificate Authenticating Method, Certificate Issuing Device, And Authentication Device App 20110185171 - Karasawa; Kei ; et al.	2011-07-28
Email system restoring recipient identifier based on identifier-for-disclosure for establishing communication between sender and recipient Grant 7,580,980 - Kawashima , et al. August 25, 2	2009-08-25
Mail distribution system, mail distribution method, and mail distribution program Grant 7,558,827 - Kawashima , et al. July 7, 2	2009-07-07
File transfer system, apparatus, method and computer readable medium storing file transfer program Grant 7,386,574 - Abe , et al. June 10, 2	2008-06-10
Mail distribution system, mail distribution method, and mail distribution program App 20070011245 - Kawashima; Masahisa ; et al.	2007-01-11
Communication method, communication system, relay system, communication program, program for communication system, mail distribution system, mail distribution method, and mail distribution program App 20060129629 - Kawashima; Masahisa ; et al.	2006-06-15
File transfer system, apparatus, method and computer readable medium storing file transfer program App 20030187852 - Abe, Tsuyoshi ; et al.	2003-10-02

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