Company Filing History:
1 out of 220 
1 out of 832,680 Years Active: 2000-2002
Title: **Yasushi Ishihama: Innovator in Photocurable Resins**
Introduction
Yasushi Ishihama is a distinguished inventor based in Wakayama, Japan, known for his groundbreaking work in the field of photocurable resins. With a total of two patents to his name, he has made significant contributions that enhance the performance and utility of photopolymers in various applications.
Latest Patents
Ishihama's latest patents focus on advanced photohardenable resin compositions. His notable inventions include a "Photohardenable resin composition providing heat-resistant photohardened product" and a "Photocurable resin composition, method of producing photo-cured shaped." The latter invention comprises a unique formulation that includes:
(A) at least one urethane di- or triacrylate, which is a novel compound,
(B) a radical polymerizable compound, and
(C) a photopolymerization initiator.
The innovative weight ratio of the urethane acrylate (A) to the radical polymerizable compound (B) ranges from 65:35 to 25:75. He also detailed a method for producing photo-cured objects by photo-curing this composition, alongside a vacuum casting mold obtained via this method and a vacuum casting method utilizing the mold.
Career Highlights
Throughout his career, Ishihama has made his mark working at Teijin Seiki Co., Ltd. His contributions at this leading company have played a vital role in advancing the development of photocurable materials, ultimately leading to his innovative patents. His expertise in this sector is demonstrated through his ongoing research and development efforts.
Collaborations
Yasushi Ishihama has had the opportunity to collaborate with notable colleagues such as Yorikazu Tamura and Tsuneo Hagiwara. Together, they have harnessed their collective knowledge to push the boundaries of resin technology and explore new applications for their innovations.
Conclusion
In summary, Yasushi Ishihama is a noteworthy figure in the realm of photocurable resins. With his inventive spirit and collaboration with accomplished colleagues, he continues to significantly impact the industry through his patents and research. His work not only advances material science but also opens up new possibilities for future innovations in a variety of fields.
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.