Location History:
- Hitachishi, JP (1986)
- Hitachi, JP (1990 - 1993)
Company Filing History:
Years Active: 1986-1993
Title: The Innovative Mind of Shigeo Hosaka
Introduction
Shigeo Hosaka, an accomplished inventor hailing from Hitachi, Japan, has made significant contributions to the field of engineering through his inventive prowess. With a portfolio of three patents, Hosaka's work has focused on innovations that enhance the performance and reliability of various mechanical components and materials.
Latest Patents
One of Hosaka's latest inventions is a starter for starting internal combustion engines. This innovative starter incorporates mechanical components designed to withstand impact loads during operation. It features a shift lever, internal gear, gear cover, front case, center bracket, and a brush holder located in a rear bracket. Notably, at least one of these components is composed of a synthetic resin, such as an aromatic copolymer or nylon series, with a glass transition temperature exceeding 90°C. This design not only improves workability but also enhances the impact load absorbing capacity, ensuring reliability even under extreme environmental conditions.
Another recent invention by Hosaka is an electrophotographic toner that integrates lactone-modified epoxy resin. This toner is particularly distinguished by its excellent transferability and flowability, featuring a binder resin that includes a lactone-modified epoxy resin. This resin is produced through the ring-opening polymerization of lactone, targeting secondary hydroxyl groups of epoxy compounds. The resulting product offers good transferability, flowability, and offset resistance, along with enhanced fixability of transferred images, making it a valuable advancement in the field of electrophotographic materials.
Career Highlights
Shigeo Hosaka is associated with Hitachi, Ltd., a reputable company known for its innovative engineering solutions. His career is marked by a commitment to developing technologies that improve functionality and efficiency in engineering applications.
Collaborations
Throughout his career, Hosaka has collaborated with notable colleagues, including Yasuyuki Takahara and Hirofumi Kubo. These partnerships have contributed to his ongoing success in inventing and patenting groundbreaking technologies.
Conclusion
Shigeo Hosaka's inventive contributions, particularly in the areas of starter mechanisms and electrophotographic toners, illustrate his significant impact on engineering innovation. His patents not only reflect his technical expertise but also address critical challenges in performance and reliability, enhancing the capabilities of modern technologies.