Company Filing History:
2 out of 268 
1 out of 89 Years Active: 2018-2025
Title: Shuichi Yamaguchi: Innovator in Grease Composition and Steering Mechanisms
Introduction
Shuichi Yamaguchi is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of lubrication and steering mechanisms, holding a total of 2 patents. His work focuses on enhancing the performance and reliability of mechanical systems through innovative grease compositions and coupling mechanisms.
Latest Patents
Yamaguchi's latest patents include a grease composition designed for lubrication between metal and resin members. This grease composition features a urea-based thickener and a synthetic hydrocarbon oil or mineral oil as a base oil. The kinematic viscosity of the base oil at 100° C. ranges from 4 to 40 mm/s. Additionally, the composition includes 1 to 10% by mass of montan wax, 1 to 5% by mass of a molybdenum-based extreme pressure agent, and 1 to 5% by mass of a sulfonate-based compound as additives. The grease composition achieves a consistency of 310 to 430, making it suitable for various lubrication applications.
Another significant patent is the shaft coupling mechanism for electric power steering apparatus. This mechanism includes a coupling base body connected to a rotating shaft and a rotation transmitting member made up of a pair of rigid components. The design allows for efficient transmission of rotation while incorporating an elastic member to enhance performance.
Career Highlights
Throughout his career, Shuichi Yamaguchi has worked with prominent companies such as Oiles Corporation and Kyodo Yushi Co., Ltd. His experience in these organizations has contributed to his expertise in lubrication technologies and mechanical systems.
Collaborations
Yamaguchi has collaborated with notable coworkers, including Noboru Nakagawa and Kota Sasaki. Their combined efforts have led to advancements in the field of lubrication and steering mechanisms.
Conclusion
Shuichi Yamaguchi's innovative work in grease compositions and steering mechanisms has made a significant impact on mechanical engineering. His patents reflect a commitment to improving the efficiency and reliability of lubrication systems.