Location History:
- Saitama, JP (1994 - 2002)
- Wako, JP (1994 - 2006)
Company Filing History:
4 out of 10,092 
1 out of 149 Years Active: 1994-2006
Title: Hirohisa Ogawa: Innovator in Permanent Magnet Technology
Introduction
Hirohisa Ogawa is a notable inventor based in Wako, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced rotor technologies. With a total of 4 patents to his name, Ogawa's work has had a substantial impact on the automotive and manufacturing industries.
Latest Patents
One of his latest patents is for a permanent magnet type rotor and method of manufacturing the rotor. This invention features an inner member with an outer ring portion and an approximately annular outer member that has soft magnetism. The design includes plural permanent magnets disposed at equal intervals on the outer circumference of the outer member. The innovation allows for a reduction in thickness and weight of the dynamotor itself, achieving high output and efficiency.
Another significant patent is for a hybrid vehicle drive apparatus. This invention simplifies the process of securely fixing a stator of a motor used in high-temperature environments to a motor housing. The AC motor is strategically connected to a crank shaft between an internal combustion engine and a transmission. The design ensures that the coefficient of thermal expansion of the stator coincides with that of the stator hold ring, enhancing the overall performance of the vehicle.
Career Highlights
Hirohisa Ogawa has worked with prominent companies such as Honda and Hitachi Powdered Metals Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in the field.
Collaborations
Ogawa has collaborated with notable coworkers, including Kenji Fukuda and Akihito Okuda. Their combined expertise has fostered an environment of innovation and creativity, leading to the development of advanced technologies.
Conclusion
Hirohisa Ogawa's contributions to the field of engineering, particularly in rotor technology and hybrid vehicle systems, highlight his role as a significant inventor. His patents reflect a commitment to innovation and efficiency in engineering design.
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.