Location History:
- Ibaraki, JA (1977)
- Hitachi, JA (1976 - 1978)
- Hitachi, JP (1979)
- Tokai, JP (1983 - 1984)
- Tohkai, JP (1984)
- Toukai-mura, Naka-gun, Ibaraki-ken, JP (1985)
- Toukai, JP (1986 - 1989)
- Naka, JP (1993)
- Tokai-mura, JP (2000 - 2002)
- Ibaraki, JP (1981 - 2004)
Company Filing History:
26 out of 42,485 
4 out of 152 
2 out of 248 
Years Active: 1976-2004
Title: **Innovative Contributions of Yoshikazu Hoshi in Engine Technology**
Introduction
Yoshikazu Hoshi, an esteemed inventor based in Ibaraki, Japan, has an impressive portfolio of 30 patents. His innovative mind has significantly contributed to advancements in internal combustion engine technologies and fuel systems. Hoshi’s patents reflect extensive research and development efforts aimed at enhancing efficiency and performance in automotive engineering.
Latest Patents
Among Hoshi's latest innovations is the **engine valve operating system for internal combustion engines**. This system utilizes an electromagnetic mechanism that incorporates a movable member positioned between two electromagnets, connected through a distance block. By alternately energizing these electromagnets, the movable member reciprocates against spring forces, allowing a valve to operate seamlessly. A noteworthy feature of this invention is the introduction of a magnetic circuit made from soft magnetic material, which enhances the electromagnet's attraction force, thereby reducing energy consumption during initialization.
Another significant invention is Hoshi's **fuel pump**, which ingeniously converts rotational movement into wobble movement through a series of mechanical components. The design includes a swash plate and wobble plate working together to facilitate the reciprocation of plural pistons within a designated fuel room. This innovative setup effectively ensures the efficient intake and discharge of fuel, further optimizing engine performance.
Career Highlights
Yoshikazu Hoshi has held key positions at notable companies, including **Hitachi, Ltd.** and **Hitachi Automotive Engineering Co., Ltd.**. His tenure at these organizations has allowed him to leverage his engineering expertise and patent his groundbreaking inventions.
Collaborations
Throughout his career, Hoshi has collaborated with prominent colleagues such as **Yoshiya Takano** and **Hideki Machimura**. These partnerships have fostered a dynamic environment for innovation and have played a pivotal role in the successful development of various technological advancements.
Conclusion
With his 30 patents and ongoing contributions to engine technology, Yoshikazu Hoshi exemplifies the spirit of innovation and engineering excellence. His work not only enhances the functionality of automotive systems but also paves the way for future developments in the field. Hoshi’s commitment to research and invention serves as an inspiration to aspiring engineers and inventors worldwide.
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.