Location History:
- Ohtsu, JP (2001)
- Osaka, JP (2003 - 2017)
Company Filing History:
5 out of 789 
3 out of 394 
1 out of 12 Years Active: 2001-2025
Title: Hiroshi Shibano: Innovator in Optical Technologies
Introduction
Hiroshi Shibano is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of optical technologies, holding a total of 9 patents. His work focuses on enhancing image display devices and materials used in various applications.
Latest Patents
One of Shibano's latest patents is an anti-reflection circular polarizer and image display device using the same. This invention provides an excellent anti-reflection circular polarizer that prevents the reflection of external light. It ensures minimal degradation of anti-reflection functionality, even under high humidity conditions, while maintaining the integrity of the image display panel. This polarizer is particularly suitable for organic EL image display devices. The design includes a reflection reduction layer, a light-transmissive substrate film, a polarizing element, and a λ/4 phase-difference layer, all stacked in a specific order. The light-transmissive substrate film is engineered to have a moisture permeability of 100 g/m·day or less.
Another notable invention is a hydrolysis-resistant polyester film. This film features a low acid value, achieved by suppressing acid value increase during its formation. The polyester film comprises a polyester resin composition that includes hindered phenol structural units. The acid value of the polyester forming the film is less than 25 eq/ton, while its intrinsic viscosity ranges from more than 0.64 dL/g to not less than 0.90 dL/g.
Career Highlights
Hiroshi Shibano has worked with notable companies such as Toyo Boseki and Toyobo Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative optical materials and devices.
Collaborations
Shibano has collaborated with several professionals in his field, including Katsuhiko Nose and Kimihiro Mabuchi. These partnerships have fostered advancements in optical technology and enhanced the quality of his inventions.
Conclusion
Hiroshi Shibano's contributions to optical technologies through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative solutions continue to impact the development of advanced image display devices and materials.
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.