Location History:
- Hiroshima, JP (1991 - 2008)
- Higashihiroshima, JP (1999 - 2011)
Company Filing History:
2 out of 11 
2 out of 51 
2 out of 40 Years Active: 1991-2011
Title: The Innovative Contributions of Toshifumi Sakai
Introduction
Toshifumi Sakai is a notable inventor based in Higashihiroshima, Japan. He has made significant contributions to the field of sound absorption technology, holding a total of five patents. His work focuses on innovative processes and materials that enhance sound absorbing capabilities.
Latest Patents
Sakai's latest patents include a process for producing a sound absorber and the resulting sound absorber and sound absorbing structure. This process involves creating a sound absorber with skin layers on the front and back surfaces, interposed with a void layer that contains multiple pin-formed holes. Each hole is designed to penetrate one skin layer without reaching the other. The sound absorber is composed of a resin material that contains 2 to 60 wt % of reinforcing fibers, which range in length from 2 to 100 mm. Another patent describes a sound absorbing body that consists of a molded body with two unexpanded layers and an expanded layer filled with voids. This design allows for the selective absorption of unpleasant sounds while maintaining sound insulating capabilities through integral molding.
Career Highlights
Throughout his career, Toshifumi Sakai has worked with prominent companies such as Daikyo Co., Ltd. and Prime Polymer Co., Ltd. His experience in these organizations has contributed to his expertise in sound absorption technologies and materials.
Collaborations
Sakai has collaborated with notable individuals in his field, including Masaharu Okamura and Hirofumi Goda. These partnerships have likely enhanced his innovative approaches and contributed to the development of his patented technologies.
Conclusion
Toshifumi Sakai's contributions to sound absorption technology through his patents and collaborations highlight his role as an influential inventor. His innovative processes and materials continue to impact the industry positively.
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.