Location History:
- Shizuoka-ken, JP (2006 - 2010)
- Iwata, JP (2009 - 2016)
- Shizuoka, JP (2014 - 2023)
Company Filing History:
27 out of 2,462 
2 out of 776 
1 out of 89 Years Active: 2006-2025
Title: Minoru Ishijima: Innovator in Power Transmission Technology
Introduction
Minoru Ishijima, hailing from Iwata, Japan, is a notable inventor recognized for his contributions to the field of power transmission technology. With a remarkable portfolio that includes 26 patents, Ishijima has made significant strides in engineering solutions that enhance efficiency and reliability in mechanical systems.
Latest Patents
Among Ishijima's latest innovations are two particularly groundbreaking patents. The first is a **power transmission shaft**, which features a unique design that combines a metal shaft member with a resin shaft member made from fiber reinforced plastic. This innovative construction enhances the durability and performance of the power transmission shaft through a specialized close-contact fitting that utilizes a male spline on the metal member, ensuring a robust coupling.
The second patent focuses on a **grease composition for constant velocity joints**. This invention encompasses a lubricant base oil, combined with specific thickeners — including a nitrogen-containing compound, triglyceride, diester, and boron nitride. The precise formulation is designed to optimize performance in constant velocity joints, making it crucial for automotive applications.
Career Highlights
Minoru Ishijima has built an impressive career, contributing to well-respected companies such as NTN Corporation and NOK Corporation. Through his work at these institutions, he has been able to pioneer advancements that have implications beyond the scope of traditional mechanics, pushing the boundaries of innovation in his field.
Collaborations
Throughout his career, Ishijima has collaborated with esteemed colleagues including Kenta Yamazaki and Junichi Izumino. These collaborations have bolstered his ability to refine and develop his inventions, fostering an environment of creativity and technical excellence.
Conclusion
Minoru Ishijima's contributions to the field of power transmission technology are marked by his inventive mindset and commitment to innovation. With 26 patents to his name, he continues to influence the engineering landscape through his groundbreaking work. His latest patents not only reflect his technical prowess but also highlight the importance of collaborative efforts in achieving extraordinary advancements in 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.