Takashi Kitada

Title: Takashi Kitada: Innovator in Touch Screen Technology

Introduction

Takashi Kitada is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of touch screen technology, holding 2 patents that showcase his innovative approach to enhancing user interaction with devices.

Latest Patents

One of his latest patents is a touch screen device that allows for high-accuracy detection of touch positions. This invention includes a receiver that captures a charge-discharge current signal from a receiving electrode in response to a drive signal applied to a transmission electrode. The receiver outputs a level signal for each electrode intersection, utilizing an IV converter to transform the charge-discharge current signal into a voltage signal. The conversion characteristic of the IV converter is designed to ensure that the phases of the voltage signal corresponding to the leading and trailing edges of the pulse wave match closely, enhancing the accuracy of touch detection.

Another notable patent is for a touch panel device that features a grid array of transmission and reception electrodes. This device is designed to minimize induction noises that can affect the reception electrodes due to the drive signal conducted through lead wires. By incorporating time constant elements connected to each transmission electrode, the device adjusts the overall time constant based on the length of the lead wire, thereby homogenizing sensitivity across different transmission electrodes and reducing positional variations in touch detection.

Career Highlights

Takashi Kitada is currently employed at Panasonic Corporation, where he continues to develop innovative technologies that improve user experience in electronic devices. His work has positioned him as a key figure in the advancement of touch screen technology.

Collaborations

Throughout his career, Kitada has collaborated with notable colleagues, including Hiromi Tanimizu and Haruhiko Kohno. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

In summary, Takashi Kitada is a distinguished inventor whose work in touch screen technology has led to significant advancements in the field. His patents reflect a commitment to innovation and improving user interaction with technology.