Hamasaki; Toshihiko

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hamasaki; Toshihiko.The latest application filed is for "method and apparatus for improving s/n ratio in digital-to-analog conversion of pulse density modulated (pdm) signal".

Company Profile

0.10.3

Hamasaki; Toshihiko - Yokohama JP
Hamasaki, Toshihiko - Yokohama-shi 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 and apparatus for improving S/N ratio in digital-to-analog conversion of pulse density modulated (PDM) signal Grant 6,489,909 - Nakao , et al. December 3, 2	2002-12-03
Digital-to analog-converting method and digital-to analog converter employing common weight generating elements Grant 6,469,648 - Nakao , et al. October 22, 2	2002-10-22
Method and apparatus for improving S/N ratio in digital-to-analog conversion of pulse density modulated (PDM) signal App 20020018013 - Nakao, Shigetoshi ; et al.	2002-02-14
Method and apparatus for analog-to-digital converting signal modulated in frequency domain App 20020018012 - Nakao, Shigetoshi ; et al.	2002-02-14
Digital-to analog-converting method and digital-to analog converter employing common weight generating elements App 20010026234 - Nakao, Shigetoshi ; et al.	2001-10-04
Waveform shaping circuit for function circuit and high order delta sigma modulator Grant 5,977,895 - Murota , et al. November 2, 1	1999-11-02
Rotation system for correction of weighting element errors in digital-to-analog converter Grant 5,856,799 - Hamasaki , et al. January 5, 1	1999-01-05
Switching control circuitry for low noise CMOS inverter Grant 5,694,065 - Hamasaki , et al. December 2, 1	1997-12-02
Oversampling digital-to-analog converter with auto-muting feature Grant 5,682,162 - Hamasaki , et al. October 28, 1	1997-10-28
Method of fabricating a miniaturized heterojunction bipolar transistor Grant 5,250,448 - Hamasaki , et al. October 5, 1	1993-10-05
Method of depositing an insulating film and a focusing ion beam apparatus Grant 5,083,033 - Komano , et al. January 21, 1	1992-01-21
Bipolar transistor Grant 4,996,581 - Hamasaki February 26, 1	1991-02-26
Method of manufacturing bipolar transistor Grant 4,830,972 - Hamasaki May 16, 1	1989-05-16

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