This inventor holds 7 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 1999-2005.
Company Filing History:
Years Active: 1999-2005
Title: Hiroshi Yutani: Innovator in Optical Disk Technology
Introduction
Hiroshi Yutani is a prominent inventor based in Katano, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 7 patents. His work focuses on improving the quality and efficiency of optical disk molding processes.
Latest Patents
One of Yutani's latest patents is the "Optical disk molding apparatus and method." This invention provides a solution to prevent data formed on a molded object from being damaged, thereby maintaining the quality of the molded object. The apparatus includes a mold moving device, a first gas supply device, and a controller. This setup allows for the formation of a first release space part by opening molds without damaging the data transferred face of the optical disk. The gas is supplied to this space at the right moment, ensuring that the optical disk and the stamper are completely separated without causing any damage to the data transferred face.
Another notable patent is the "Clamp pressure control method for injection molding process." This invention features an injection-compression molding apparatus that includes a stationary mold with a nozzle for injecting molten resin and a movable mold driven by a servo motor. The process begins with high-speed position control of the movable mold, which then transitions to speed feedback control. This allows for delicate regulation of clamping pressure in response to fluctuations in the resin.
Career Highlights
Hiroshi Yutani is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of optical disk manufacturing.
Collaborations
Yutani has collaborated with several talented individuals in his field, including Shinji Kadoriku and Takaaki Higashida. Their combined expertise has contributed to the success of various projects and patents.
Conclusion
Hiroshi Yutani's contributions to optical disk technology have made a significant impact on the industry. His innovative patents and dedication to quality continue to shape the future of optical disk manufacturing.