Company Filing History:
Years Active: 2008-2020
Title: Innovative Contributions of Shuji Kawaguchi
Introduction
Shuji Kawaguchi is a notable inventor based in Suwa, Japan, recognized for his contributions to the field of electronics with a total of 13 patents. His work primarily revolves around advanced oscillation circuits and variable resistance circuits, which have implications for various electronic applications.
Latest Patents
Kawaguchi's latest patents include innovations in oscillation circuits and microcomputers. One of his key inventions is an oscillation circuit that features a charge-discharge type oscillation unit, which operates at an oscillating frequency aligned with a control current value. Additionally, this circuit has a control current generation unit that incorporates a reference voltage generation circuit, designed to produce a reference voltage with specific temperature characteristics. A temperature characteristic slope correction circuit is also part of this invention, which adjusts the slope of the reference voltage in accordance with first correction information, generating an output voltage with different temperature characteristics. The voltage-current conversion circuit then transforms this output voltage into a control voltage, correcting the control current value based on second correction information.
Another significant patent is for a variable resistance circuit that allows precise adjustment of its resistance value. This innovation minimizes errors associated with the resistance value due to the on-resistances of switch circuits, even as these circuits toggle between OFF and ON states. The variable resistance circuit comprises a ladder resistor circuit with multiple resistors, a first switch circuit in series with one of these resistors, and a second switch circuit in parallel. The design ensures that when one switch is activated, the other is turned off, maintaining the circuit's integrity.
Career Highlights
Shuji Kawaguchi is associated with Seiko Epson Corporation, a leading company in the electronics and printing industries. His tenure at the company has seen him develop groundbreaking technologies that enhance electronic devices' functionality and performance. His dedication to innovation has solidified his reputation as a prominent inventor in his field.
Collaborations
Throughout his career, Kawaguchi has collaborated with esteemed colleagues, including Satoru Kodaira and Noboru Itomi. These partnerships have likely contributed to the successful development of his patents, showcasing the collaborative spirit within the innovation landscape.
Conclusion
Shuji Kawaguchi's inventive spirit and technological advancements have made significant contributions to the field of electronics. With 13 patents to his name, his work continues to impact the industry, reflecting the essence of innovation and the pursuit of excellence in engineering. His collaborative efforts and role at Seiko Epson Corporation further underscore his commitment to pushing the boundaries of electronic technology.
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