Company Filing History:
Years Active: 2003-2013
Title: **Seiichi Kusumoto: Innovator in Polarizing Films and Optical Devices**
Introduction
Seiichi Kusumoto is a prominent inventor based in Ibaraki, Japan, known for his significant contributions to the field of optical technology. With a remarkable portfolio of 20 patents, Kusumoto has dedicated his career to the development of advanced materials and devices that enhance image quality and performance.
Latest Patents
Among his latest innovations, Kusumoto has developed a polarizing film and image display that features a unique polarizing film or polarizer. This innovation is characterized by an elastic modulus of at most about 3500 N/mm², which effectively suppresses warping. The polarizing film is produced by adsorbing a dichroic material into a polyvinyl alcohol-based film that is 20 μm thick and subsequently stretching the film. It boasts a transmittance of at least 43% and a polarization degree of at least 98%. Additionally, a transparent protective layer is laminated on at least one surface to form a robust polarizing plate.
Another noteworthy invention is the hard-coated antiglare film, which provides high hardness, scratch resistance, and excellent antiglare properties. This film comprises a transparent plastic substrate with a hard-coating layer containing fine particles, formed on at least one surface of the substrate. The thickness of the hard-coating layer ranges from 15 to 30 μm, with fine particles having a weight average particle size of 30 to 75% of the layer’s thickness. The surface's average tilt angle is maintained between 0.4° to 1.5°, achieved through a resin composed of three specific resin components.
Career Highlights
Seiichi Kusumoto is currently associated with Nitto Denko Corporation, where he applies his expertise in materials science to produce cutting-edge optical devices. His innovative work has not only led to numerous patents but has also played a crucial role in enhancing the performance and durability of optical products in various applications.
Collaborations
Throughout his career, Kusumoto has collaborated with esteemed colleagues such as Youichirou Sugino and Hisashi Mihara. These partnerships have fostered an environment of creativity and innovation, enabling the joint development of advanced technologies in the field of polarizing films and optical solutions.
Conclusion
Seiichi Kusumoto's contributions to the field of optical technology are commendable and reflect a deep understanding of materials and their applications. Through his inventions, he continues to influence the development of high-performance optical devices, making significant strides forward in the industry. His impressive body of work, evidenced by his patents and collaborations, establishes him as a leading innovator in the realm of polarizing films and imaging technology.
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.