Location History:
- Saitama-Ken, JP (1999 - 2005)
- Saitama, JP (1989 - 2012)
Company Filing History:
9 out of 39 
2 out of 141 
1 out of 36,771 
Years Active: 1989-2012
Title: Innovator Spotlight: Narihiko Yoshimura
Introduction: Narihiko Yoshimura is a prominent inventor based in Saitama, Japan, known for his significant contributions to gear oil compositions and automatic transmission technologies. With a remarkable portfolio of 13 patents, Yoshimura’s inventions have advanced the performance and efficiency of vehicle driving systems.
Latest Patents: Two of Yoshimura's latest patents showcase his innovative approach in the automotive lubricant sector. The first patent is for a gear oil composition specifically designed for vehicle final reduction gears. This invention focuses on improving fuel efficiency by reducing viscosity while maintaining essential bearing fatigue life characteristics. The composition includes a base oil (A), another base oil (B), and at least one type of additive for gear oil, achieving a kinematic viscosity of 80 mm/s or less at 40°C. The second patent pertains to an oil composition for automatic transmissions, which enhances wet friction torque capacity and prevents shuddering, while also ensuring durability in performance for lock-up clutches and slip control.
Career Highlights: Throughout his career, Yoshimura has demonstrated a strong commitment to innovation while working at respected companies such as Toa Nenryo Kogyo K.K. and Tonen Corporation. His work not only encompasses product development but also addresses key challenges in automotive engineering, making significant impacts on the industry.
Collaborations: Narihiko Yoshimura has collaborated with notable professionals in the field, including Hirotaka Tomizawa and Yasuji Komatsu. Their combined expertise has fostered advancements in lubricant technology, enhancing the overall performance of automotive transmission systems.
Conclusion: Narihiko Yoshimura's contributions to the automotive industry exemplify the vital role that inventors play in driving innovation. His patents reflect a deep understanding of the complexities involved in vehicle lubricants, marking him as an influential figure among modern inventors. The continuous development of his inventions will undoubtedly contribute to more efficient and effective vehicular technologies in the future.