Company Filing History:
2 out of 4,678 
1 out of 5 
1 out of 310 Years Active: 1985-1989
Title: Masayoshi Shigemasa: Innovator in Transmission Technology
Introduction
Masayoshi Shigemasa is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of vehicle transmission systems, holding a total of 3 patents. His innovative designs have advanced the functionality and efficiency of automotive technologies.
Latest Patents
One of Shigemasa's latest patents is the "Belt-pulley type steplessly variable transmission assembly." This invention features a steplessly variable transmission system for vehicles, utilizing a belt-pulley type mechanism. The design includes an input shaft with first and second shaft portions, a sleeve member that is slidably splined on the first shaft portion, and a driven gear on the second shaft portion. The synchronizer mechanism allows for the selection of either forward or reverse driving transmission, enhancing the versatility of vehicle operation.
Another significant patent is the "Flat type torque converter." This invention involves a flat-type torque converter with a unique design that includes a turbine with plate-worked turbine blades and a pump with plate-worked pump blades. The converter is characterized by its small axial thickness and optimized wall thickness of the stator blade, which secures an effective passage cross-section. This innovation improves the overall performance and efficiency of torque converters in vehicles.
Career Highlights
Throughout his career, Masayoshi Shigemasa has worked with prominent companies in the automotive industry, including Mazda Motor Corporation and Mazda Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle technology.
Collaborations
Shigemasa has collaborated with notable coworkers such as Hitoshi Akutagawa and Hiroaki Hayashi. Their combined expertise has contributed to the successful development of advanced automotive technologies.
Conclusion
Masayoshi Shigemasa's contributions to transmission technology have made a lasting impact on the automotive industry. His innovative patents reflect his dedication to improving vehicle performance and efficiency. His work continues to inspire future advancements in automotive engineering.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.