Yotsutani; Akio

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yotsutani; Akio.The latest application filed is for "cordless key telephone system capable of quickly answering incoming calls".

Company Profile

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Yotsutani; Akio - Tokyo 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
Cordless key telephone system capable of quickly answering incoming calls Grant 5,239,572 - Saegusa , et al. August 24, 1	1993-08-24
Radio telephone system control method Grant 5,140,628 - Murata , et al. * August 18, 1	1992-08-18
Cordless telephone system Grant 4,974,251 - Ohta , et al. November 27, 1	1990-11-27
Cordless telephone apparatus and a method of controlling same Grant 4,962,524 - Murata , et al. October 9, 1	1990-10-09
Radio telephone system Grant 4,875,231 - Hara , et al. October 17, 1	1989-10-17
Communication control system capable of searching a called telephone set in a mobile radio telephone network Grant 4,843,622 - Yotsutani , et al. June 27, 1	1989-06-27
Radio telephone system control apparatus and method Grant 4,802,200 - Murata , et al. January 31, 1	1989-01-31
Control system of a radio telephone apparatus Grant 4,802,201 - Yoshizawa , et al. January 31, 1	1989-01-31
Radio telephone system control apparatus and method Grant 4,776,001 - Murata , et al. October 4, 1	1988-10-04
Method of transmitting terminating call signals within a restricted duration and a base station and a portable unit for use in the same Grant 4,736,461 - Kawasaki , et al. April 5, 1	1988-04-05
Radio telephone system and method for controlling same Grant 4,726,052 - Kato , et al. February 16, 1	1988-02-16
Method of transmitting terminating call signals within a restricted duration and a base station and a portable unit for use in the same Grant 4,679,244 - Kawasaki , et al. July 7, 1	1987-07-07
Cordless telephone apparatus having means for synchronizing channel scanning of fixed and portable units Grant 4,656,653 - Oda , et al. April 7, 1	1987-04-07
Mobile radio communication system Grant 4,640,986 - Yotsutani , et al. February 3, 1	1987-02-03

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