Location History:
- Otsu, JP (1978 - 1983)
- Ohtsu, JP (1996)
Company Filing History:
Years Active: 1978-1996
Title: Innovations of Tokio Kokubu
Introduction
Tokio Kokubu is a notable inventor based in Otsu, Japan. He has made significant contributions to the field of materials engineering, particularly in the development of advanced polymer compositions and shock absorber technologies. With a total of 3 patents to his name, Kokubu's work exemplifies innovation and practicality in engineering solutions.
Latest Patents
One of Kokubu's latest patents is a resin shock absorber. This innovative device features a compression deformable portion made of a resin with a flexural modulus of elasticity ranging from 500 to 20,000 kg/cm². The shock absorber boasts a yield strength of 2 to 25 kN/m² and an impressive compressive energy absorption efficiency of 50% or higher. This design ensures high energy absorption efficiency, superior restorability, and maintenance-free operation due to its resistance to corrosion, water, and weather. The shock absorber is versatile, suitable for use in various environments, including marine, terrestrial, and aerial applications. Additionally, it can be easily extended into a block shock absorber, which is lightweight, simple in structure, and capable of providing uniform cushioning characteristics over a larger area.
Another significant patent by Kokubu is a fiber-reinforced polymer blend composition. This composition includes a polyamide resin, a modified polypropylene resin with a melt flow index of 1 to 50 g/10 minutes, and a fiber-reinforcing agent. The weight ratio of the polyamide resin to the polypropylene resin ranges from 70:30 to 95:5, with the fiber-reinforcing agent content being between 50 to 200% by weight based on the total amount of the polyamide and polypropylene resins. This blend is recognized for its excellent heat resistance, water resistance, impact resistance, and surface resistance.
Career Highlights
Tokio Kokubu is associated with Toyo Boseki Kabushiki Kaisha, where he has been instrumental in driving innovation and research in polymer technologies. His work has not only advanced the field but has also contributed to the company's reputation as a leader in material science.
Collaborations
Kokubu has collaborated with notable colleagues such as Hironobu Furusawa and Sakashi Kamata. Their combined expertise has fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
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