Location History:
- Kokubunji, JP (1978)
- Hachioji, JP (1985)
- Mobara, JP (1978 - 1987)
- Chiba-ken, JP (1996)
- Chosei, JP (2004)
- Chousei, JP (2005)
- Ushiku, JP (1995 - 2011)
Company Filing History:
17 out of 42,485 
1 out of 217 
1 out of 522 Years Active: 1978-2011
Title: Minoru Hiroshima: Innovator in Pump Technology and Display Devices
Introduction
Minoru Hiroshima, a distinguished inventor based in Mobara, Japan, has made significant contributions to the field of engineering with a total of 19 patents to his name. His innovative work primarily focuses on pressure testing methods for pumps and enhancements in liquid crystal display devices.
Latest Patents
Among his latest patents is a ground-breaking method for conducting pressure tests on double suction volute pumps. This method entails the creation of flat sealing faces along the rotary shaft's circumferential edges on the suction chamber side of semicircular division plates, which define the suction and discharge chambers. The invention involves the use of disc plates as pressure test tools, positioned to contact the sealing faces and secured in place by a specific bolt fastening structure.
Another notable invention is related to a liquid crystal display device that incorporates color filters. This innovation introduces a color-converting material within the filters, which effectively converts a portion of incoming light to a specific wavelength while preventing color purity deterioration and enhancing optical efficiency.
Career Highlights
Minoru Hiroshima has had a commendable career with prominent companies. He has worked with Hitachi, Ltd. and Hitachi Device Engineering Co., Ltd., where he applied his engineering acumen and innovative thinking to develop cutting-edge technologies in his field.
Collaborations
Throughout his career, Minoru has collaborated with accomplished colleagues such as Naohiko Takahashi and Yasuo Fukushima. These partnerships contributed to a synergistic environment that fostered the development of impactful inventions.
Conclusion
Minoru Hiroshima's innovations in pressure testing methods for pumps and liquid crystal displays highlight his significant role in advancing technology. His dedication to enhancing product efficiency and reliability continues to influence the engineering landscape, marking him as a pivotal figure in the realm of inventions.
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.