Location History:
- Tokyo, JP (1994)
- Tokyo-To, JP (1997 - 2003)
- Shinjuku-ku, JP (2003 - 2006)
Company Filing History:
10 out of 3,202 
1 out of 832,891 Years Active: 1994-2006
Title: Keiji Hanamoto: Innovator in Injection Molding and Lens Technology
Introduction
Keiji Hanamoto is a prominent inventor based in Tokyo-to, Japan. He has made significant contributions to the fields of injection molding and lens technology, holding a total of 11 patents. His innovative approaches have led to advancements that enhance manufacturing processes and product quality.
Latest Patents
One of Hanamoto's latest patents is an apparatus for forming patterns onto articles during injection molding. This method involves feeding a pattern-bearing film to the female mold, where the distal end of the film is fixed under the lower portion of the mold. The film is then retreated by a force from the film supply portion, which tightens the film and prevents slacks or wrinkles from forming. This ensures that the film can be effectively spread around the parting surface of the female mold. The apparatus features a film suppressing frame that is pressed to the female mold through a sliding rod, allowing for accurate positioning of the film. Another notable patent is the Fresnel lens base sheet, which is designed for the formation of a lens layer using ultraviolet-cured resin. This base sheet exhibits excellent impact resistance and environmental resistance, comprising a rubber-modified styrene resin with a copolymer of styrene and acrylic ester monomers.
Career Highlights
Throughout his career, Hanamoto has worked with notable companies, including Dai Nippon Printing Co., Ltd. His work has significantly impacted the manufacturing and optical industries, showcasing his expertise in developing innovative solutions.
Collaborations
Hanamoto has collaborated with talented individuals such as Hiroyuki Atake and Kazushi Miyazawa. These partnerships have contributed to the success of his projects and the advancement of technology in his field.
Conclusion
Keiji Hanamoto's contributions to injection molding and lens technology demonstrate his innovative spirit and dedication to improving manufacturing processes. His patents reflect a commitment to excellence and a forward-thinking approach that continues to influence the industry.