Location History:
- Kameoka, JP (1991)
- Kyoto, JP (1993 - 1996)
Company Filing History:
3 out of 3,516 
1 out of 44 
Years Active: 1991-1996
Title: Haruo Osafune: Innovator in Oxynitride Glass Technology
Introduction
Haruo Osafune is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of materials science, particularly in the development of oxynitride glass and its applications. With a total of 3 patents to his name, Osafune's work has paved the way for advancements in glass technology.
Latest Patents
Osafune's latest patents include innovative methods for preparing oxynitride glass and glass fibers. One of his notable inventions is a transparent oxynitride glass that boasts a transmittance of at least 80%/mm in the wavelength region of 400 to 800 nm. This glass incorporates silicon particles or silicon alloy particles at a concentration of no more than 1.0×10⁹/cm³. The glass fiber produced from this material exhibits exceptional strength, surpassing that of conventional oxide glass fibers, making it ideal for use as reinforcing fiber. Another significant patent involves an oxynitride glass fiber designed for composite products, featuring a surface cladding made from a composition that includes a silane coupling agent. This fiber demonstrates excellent strength, elastic modulus, adhesion, and wetting properties with respect to matrix resin, resulting in composite products that excel in strength, toughness, and interlaminar shear resistance.
Career Highlights
Throughout his career, Haruo Osafune has worked with esteemed companies such as Shimadzu Corporation and Asahi Fiber Glass Company, Limited. His experience in these organizations has contributed to his expertise in glass technology and materials science.
Collaborations
Osafune has collaborated with notable colleagues, including Hiroyoshi Minakuchi and Satoshi Kitamura. These partnerships have fostered innovation and development in the field of oxynitride glass.
Conclusion
Haruo Osafune's contributions to the field of materials science, particularly in oxynitride glass technology, have been significant. His innovative patents and collaborations highlight his role as a leading inventor in this specialized area.