This inventor holds 15 USPTO granted patents. Top assignees: Kabushiki Kaisha Sankyo Seiki Seisakusho, Sankyo Seiki Mfg. Co., Ltd, K.k. Sankyo Seiki Seisakusho. Active years: 1987-2004.
Location History:
- Komagane, JP (1990 - 1996)
- Simosuwa-machi, JP (2002)
- Nagano, JP (1987 - 2004)
Company Filing History:
9 out of 307 
3 out of 264 
1 out of 13 Years Active: 1987-2004
Title: Ikuo Kasuga: Innovator in Optical Technology
Introduction
Ikuo Kasuga is a prominent inventor based in Nagano, Japan. He has made significant contributions to the field of optical technology, holding a total of 15 patents. His work primarily focuses on optical pickup devices, which are essential for reading data from optical discs.
Latest Patents
Among his latest patents is the "Optical pickup apparatus and method of manufacturing the same." This invention features a deflector that deflects laser light emitted from a laser light emitting device. A lens driver is responsible for moving an objective lens to focus the laser light onto an optical recording disk. The design includes a frame member that supports the laser light emitting device, the deflector, and the lens driver. The deflector is strategically positioned to align the center of the laser light's intensity distribution with the optical axis of the objective lens.
Another notable patent is the "Optical pick-up device," which incorporates an optical system comprising a half mirror and a prism. These components guide a first laser beam for CDs and a second laser beam for DVDs to the optical recording medium. The half mirror is designed with a reflectance to transmittance ratio of 5:1 for the first laser beam, while the prism has a ratio of 1:3. This configuration allows for efficient guidance of the laser beam without light quantity loss, ensuring reliable CD recording operations.
Career Highlights
Ikuo Kasuga has worked with several notable companies throughout his career, including Kabushiki Kaisha Sankyo Seiki Seisakusho and Sankyo Seiki Mfg. Co., Ltd. His experience in these organizations has contributed to his expertise in optical technologies and innovations.
Collaborations
Kasuga has collaborated with esteemed colleagues such as Tohru Hotta and Fumio Kobayashi. Their joint efforts have further advanced the field of optical technology and enhanced the development of innovative solutions.
Conclusion
Ikuo Kasuga's contributions to optical technology through his patents and collaborations have made a significant impact in the industry. His innovative designs continue to influence the development of optical pickup devices, showcasing his expertise and dedication to advancing technology.