Company Filing History:
2 out of 35 
2 out of 90,594 
Years Active: 1997-1998
Title: The Innovations of Yoshihiro Hirai
Introduction
Yoshihiro Hirai is a notable inventor based in Ibaraki-ken, Japan. He has made significant contributions to the field of electrophotography, particularly through his innovative patents. With a total of two patents to his name, Hirai has demonstrated a commitment to advancing technology in this area.
Latest Patents
Hirai's latest patents include a charging member and a process cartridge and electrophotographic apparatus. The first patent describes a charging member designed to be in contact with an object member, to which a voltage is applied for electrostatic charging. This charging member features a substrate, a metal layer, and a surface layer formed as a seamless tube. It is particularly useful in conjunction with a process cartridge and an electrophotographic apparatus. The second patent focuses on a contact charging member that is abutted against a charge-receiving member and supplied with voltage for charging. This member consists of an electroconductive substrate, an elastic layer, and a surface layer that is laminated. The surface layer is made of a crosslinked polymer, which is crosslinked by electron beam irradiation, enhancing its durability and uniform charging ability under various environmental conditions.
Career Highlights
Throughout his career, Yoshihiro Hirai has worked with prominent companies such as Canon Kasei Kabushiki Kaisha and Canon Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in technology.
Collaborations
Hirai has collaborated with notable colleagues, including Masaaki Takenaka and Takashi Yamashita. These partnerships have likely played a role in the development of his innovative patents and have contributed to the success of his projects.
Conclusion
Yoshihiro Hirai's contributions to the field of electrophotography through his patents reflect his innovative spirit and dedication to technology. His work continues to influence advancements in the industry, showcasing the importance of inventors in driving progress.
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.