Hiroshi Yamashita

Title: Hiroshi Yamashita: Innovator in Touch Panel Technology

Introduction

Hiroshi Yamashita is a notable inventor based in Kyoto, Japan. He holds a total of four patents, showcasing his significant contributions to the field of touch panel technology. His work emphasizes the integration of innovative electronic devices that enhance user interaction.

Latest Patents

Among his latest contributions are two remarkable patents:

1. **Control circuit and control method of touch panel, and touch panel input device and electronic device using the same**

This patent discloses a control circuit designed for a touch panel consisting of first and second terminals drawn from a first resistive film and third and fourth terminals drawn from a second resistive film. The circuit includes a coordinate detection mechanism that generates signals related to the impedance of the touch panel and the voltages of its terminals. A calibration circuit is also incorporated to enhance the accuracy of touch detection by storing and comparing initial state impedance with operational state impedance.

2. **Remote control apparatus using electrostatic sensor**

In this innovation, the remote controller comprises at least one input switch that communicates signals based on the input state to a target device. It features a main electrode pair with adjustable inter-electrode distance based on pressing force, as well as multiple sub-electrode pairs. The signal processor in this patent actively monitors capacitance values and processes signals accordingly, facilitating efficient communication with target objects.

Career Highlights

Hiroshi has had a remarkable career, contributing his expertise at various reputable companies, including Rohm Co., Ltd. and Nippon Shinyaku Company, Ltd. His work at these organizations has furthered advancements in electrical and electronic technologies, particularly in the development of user-friendly devices.

Collaborations

Throughout his career, Hiroshi Yamashita has collaborated with notable colleagues, including Yohji Ezure and Shigeaki Maruo. Together, they have worked on projects that pushed the boundaries of technology and innovation, highlighting the collective effort characteristic of successful inventors.

Conclusion

Hiroshi Yamashita’s contributions to the field of touch panel technology and remote control apparatus represent significant innovations that enhance user interaction with electronic devices. His patents reflect a keen understanding of user needs and technological possibilities, making him a prominent figure in the realm of modern inventions.