Location History:
- Saitama, JP (2011)
- Tokyo, JP (1992 - 2015)
Company Filing History:
5 out of 1,268 
1 out of 58,131 
1 out of 2 
Years Active: 1992-2015
Title: **Hiroshi Umeyama: Innovator in Retort Cup and Optical Disc Technologies**
Introduction
Hiroshi Umeyama is a distinguished inventor based in Tokyo, Japan, known for his significant contributions to product design and manufacturing processes. With a total of five patents to his name, Umeyama has made remarkable strides in the development of innovative technologies, particularly in the areas of packaging and optical media.
Latest Patents
Among his latest inventions, the "Retort Cup" stands out. This innovative retort cup features a unique tubular barrel portion that comprises a paper layer and thermoplastic resin layers. Its bottom portion is designed with a downwardly bent peripheral edge, effectively sealing one of the openings of the barrel. The cup's construction includes an attached barrel overlap portion, where the edges of the forming blank are sealed, as well as a fold-back mechanism at both the lower and upper ends, ensuring robustness and reliability in food packaging.
Another notable patent is for an "Optical Disc and Method of Manufacturing Same." This optical disc consists of a substrate made from either resin-impregnated or resin-coated paper. It incorporates a recording layer formed by bonding a specially prepared recording layer sheet to the substrate. The resin used in this construction is selected from advanced materials such as polycarbonates and specialized epoxy resins, marking a significant advancement in the durability and performance of optical storage media.
Career Highlights
Throughout his career, Hiroshi Umeyama has collaborated with industry leaders, including Toppan Printing Co., Ltd. and Sony Corporation. His work in these renowned companies has positioned him at the forefront of innovative design and manufacturing processes.
Collaborations
Umeyama has had the privilege to work alongside esteemed colleagues such as Masayuki Taniguchi and Toshikazu Katoh. Their collective expertise and synergy have contributed to the innovative developments that have emerged from their collaboration.
Conclusion
In conclusion, Hiroshi Umeyama's contributions to the fields of packaging and optical media manufacturing exemplify his dedication to innovation. With his inventive spirit and collaborative efforts, he continues to shape the landscape of modern technologies, leaving a lasting impact on the industry.