Company Filing History:
9 out of 21,963 
1 out of 10,092 
Years Active: 2004-2023
Title: The Innovations of Toshizumi Yamaguchi
Introduction
Toshizumi Yamaguchi is a notable inventor based in Wako, Japan. He has made significant contributions to the field of engineering, particularly in vibration control and vehicle body structures. With a total of 10 patents, his work has had a considerable impact on automotive design and technology.
Latest Patents
One of Yamaguchi's latest patents is a "Plate-like member vibration control device." This device includes a plurality of piezoelectric element actuators, at least one piezoelectric element sensor, and a control circuit that performs feedback control based on the sensor's output voltage. The aim is to suppress vibration of the plate-like member, thereby preventing noise generation at specific frequencies. This innovation enhances the gain at control target frequencies, effectively reducing vibration and noise.
Another significant patent is related to a "Vehicle body structure." This design prevents a bumper beam of another vehicle from riding over the rear part of the vehicle body. The structure features a rear side door located forward of the rear wheel, equipped with a rear door beam that extends in the front-and-rear direction. This innovative design includes a side member upper section and a side member lower section, which work together to enhance the vehicle's safety and structural integrity.
Career Highlights
Yamaguchi has worked with prominent companies in the automotive industry, including Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in vehicle technology.
Collaborations
Throughout his career, Yamaguchi has collaborated with talented individuals such as Takumi Tsuyuzaki and Satoru Kawabe. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Toshizumi Yamaguchi's contributions to the fields of vibration control and vehicle design are noteworthy. His innovative patents and collaborations have significantly advanced automotive technology, making him a respected figure in the industry.