This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Toyota Jidosha Kabushiki Kaisha, Kyb Corporation. Active years: 2019-2022.
Company Filing History:
2 out of 38,774 
1 out of 410 
Years Active: 2019-2022
Title: Hirofumi Morinaga: Innovator in Shock Absorber Technology
Introduction
Hirofumi Morinaga is a notable inventor based in Miyoshi, Japan. He has made significant contributions to the field of shock absorber technology, holding a total of 2 patents. His innovative designs have been instrumental in enhancing the performance and reliability of automotive components.
Latest Patents
Morinaga's latest patents include a "Shock Absorber with a Hydrostopper" and a "Shock Absorber." The shock absorber with a hydrostopper features a stopper piston that is relatively displaceable along a rod portion of a piston. This design partitions one cylinder chamber into an upper chamber and a lower chamber, utilizing a compression coil spring to bias the stopper piston against a stopper disc. The hydrostopper also includes an elastic disk that increases the amount of elastic deformation, thereby enhancing the reduction of the effective passage cross-sectional area of the orifice passage as the differential pressure between the chambers increases. The second patent, the shock absorber, incorporates a rod guide with a housing portion and a depressed portion, designed to improve the functionality and efficiency of the shock absorber system.
Career Highlights
Throughout his career, Morinaga has worked with prominent companies such as Toyota Motor Corporation and KYB Corporation. His experience in these leading automotive firms has allowed him to refine his skills and contribute to groundbreaking innovations in vehicle suspension systems.
Collaborations
Morinaga has collaborated with talented individuals in the industry, including Asuka Mogi and Yuusuke Furuta. These partnerships have fostered a creative environment that has led to the development of advanced technologies in shock absorber design.
Conclusion
Hirofumi Morinaga's contributions to shock absorber technology exemplify his dedication to innovation and excellence. His patents reflect a deep understanding of mechanical engineering and a commitment to improving automotive performance.