Location History:
- Tokyo, JA (1976)
- Tokyo, JP (1980 - 1989)
- Kanagawa, JP (2009 - 2019)
- Yokohama, JP (1992 - 2023)
Company Filing History:
11 out of 209 
7 out of 586 
6 out of 90,594 
Years Active: 1976-2025
Title: Innovative Contributions of Takayuki Ishihara in Polymer Chemistry
Introduction
Takayuki Ishihara, based in Kanagawa, Japan, is a prominent inventor known for his significant contributions to the field of polymer chemistry. With a remarkable portfolio of 25 patents, he has excelled in developing innovative materials that enhance various applications.
Latest Patents
Ishihara's recent patents include a **propylene-based resin composition and film for heat sealing**. This composition features an impact polypropylene component (A) and a linear low-density polyethylene component (B) that contains methylpentene as a comonomer. The innovative aspect of this resin composition lies in its xylene-soluble fraction, which must be 8 mass % or higher, and its intrinsic viscosity ranges between 1.0 to 2.9 dL/g, making it suitable for advanced applications.
Another noteworthy patent is the **adhesive for polyolefin and multilayered structure**. This innovation involves a multilayered structure consisting of an olefin resin layer and a gas-barrier layer, where an adhesive layer consisting of an acid-modified olefin resin is included. The unique characteristic of this adhesive is its methyl branches, which number between 10 to 200 per 1000 carbon atoms on the main chain, while maintaining fewer than 50 larger branches.
Career Highlights
Takayuki Ishihara has been associated with some prestigious companies in the industry, including Toyo Seikan Group Holdings, Ltd. and Toyo Seikan Kaisha, Ltd. His tenure at these companies has allowed him to apply his innovative ideas in real-world applications and shape the future of polymer materials.
Collaborations
Throughout his career, Ishihara has collaborated with renowned professionals in the field. Notable coworkers include Hiroaki Goto and Yoshihiro Ohta, with whom he has likely exchanged ideas and insights, further enhancing his inventive output.
Conclusion
Takayuki Ishihara's work has made a significant impact in the realm of polymer chemistry. His innovative patents reflect a commitment to advancing materials science, showcasing his ability to blend functionality with cutting-edge technology. With 25 patented inventions to his name, Ishihara continues to be a valuable contributor to the field, inspiring future generations of inventors and researchers.
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.