Toyota, Japan

Kametaro Hashimoto


Average Co-Inventor Count = 5.1

ph-index = 5

Forward Citations = 95(Granted Patents)


Location History:

  • Toyota, JA (1976 - 1978)
  • Toyota, JP (1985)

Company Filing History:


Years Active: 1976-1985

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7 patents (USPTO):Explore Patents

Title: Celebrating the Innovations of Kametaro Hashimoto

Introduction: Kametaro Hashimoto, a notable inventor based in Toyota, Japan, has made significant contributions to the field of engineering with a total of seven patents. His work primarily focuses on developing advanced materials and methods that enhance the performance and durability of various components.

Latest Patents: Among his recent innovations, Hashimoto holds a patent for a vibration-resistant, heat-insulating casting method. This invention involves ceramics that are enveloped in a casting, characterized by a cumulative particle size distribution where the percentage of particles smaller than 44 micrometers ranges between 14.5% and 50%. The remaining particles have a maximum size between 500 and 2,000 micrometers, aimed at producing vibration-resistant ceramic parts. Additionally, he developed a sintered alloy with improved wear resistance at high temperatures. This alloy features a soft, predominantly iron matrix with a Vickers hardness of 100-200, integrating 5% to 20% molybdenum, 0.5% to 1.5% carbon, and other additives such as nickel, cobalt, and chromium.

Career Highlights: Kametaro Hashimoto is an employee of Toyota Jidosha Kogyo Kabushiki Kaisha, one of the leading automotive manufacturing companies in the world. Over the years, he has been instrumental in advancing Toyota's material technology, particularly in the development of high-performance engineering solutions that set industry standards.

Collaborations: Throughout his career, Hashimoto has worked alongside esteemed colleagues, including Kenji Ushitani and Masashi Shibata. Their collaborative efforts have led to breakthroughs that enhance the company's product offerings and further its reputation for quality and innovation.

Conclusion: Kametaro Hashimoto’s commitment to advancing material science through his patents exemplifies the spirit of innovation that drives the automotive industry forward. His contributions not only improve the performance of vehicles but also reflect the dedication of inventors striving to push the boundaries of technology. As the industry evolves, Hashimoto's inventions will likely continue to play a pivotal role in shaping the future of automotive engineering.

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