This inventor holds 2 USPTO granted patents. Top assignee: Lapis Technology Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Hiroshi Tsuchi: Display and Driver Circuit Innovations.
Introduction
Hiroshi Tsuchi is an inventor based in Yokohama, Japan, whose patent work focuses on electronic circuits for display systems. He is associated with Lapis Technology Co., Ltd. and has 2 patents.
Latest Patents
Tsuchi’s listed patents address output amplification and digital-to-analog conversion for display applications.
“Output amplifier circuit, display driver and display device” describes an amplifier circuit with multiple amplifiers, corresponding bias circuits, and wiring that supplies bias voltages to groups of amplifiers. A switch can connect separate bias-supply wirings, supporting control of amplifier operating currents.
“Digital-to-analog converter, data driver, and display device” describes a differential amplifier and a decoder that assigns voltages to input terminals based on digital data. Its tail-current control circuit adjusts current ratios across differential pairs, using predetermined maximum, minimum, and intermediate values.
Career Highlights
Tsuchi’s patent portfolio reflects work on circuit architectures used in display drivers and display devices. The inventions address bias-current distribution in output amplifiers and current control in digital-to-analog conversion.
Collaborations
Tsuchi is associated with Lapis Technology Co., Ltd. His listed coworker is Hiroki Aizawa.
Conclusion
Hiroshi Tsuchi’s two listed patents focus on improving circuit design for display amplification and digital-to-analog conversion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile