Location History:
- Gyeonggil-do, KR (2007)
- Suwon-si, KR (2007 - 2015)
Company Filing History:
3 out of 103 
2 out of 131,214 
Years Active: 2007-2015
Title: The Innovations of Seung-man Han
Introduction
Seung-man Han is a notable inventor based in Suwon-si, South Korea. He has made significant contributions to the field of optical technology, holding a total of five patents. His work primarily focuses on optical pickups and information storage systems, showcasing his expertise in this specialized area.
Latest Patents
One of Han's latest patents is an optical pickup and optical information storage system that includes a diffracting element. This innovative optical pickup is designed to split incident light into main light and multiple sub-light beams. The diffracting element consists of at least three regions, which include first, second, and third regions. The second region is strategically placed between the first and third regions and possesses a phase difference from them. This design allows the optical pickup to effectively detect a tracking error signal using light that has been diffracted by the element. Another significant aspect of his patent involves a photodetector that receives both the main light beam and sub-light beams reflected from an information storage medium. The photodetector utilizes zeroth-order light as the main beam and either first-order or third-order light as the sub-light beam, depending on the type of optical information storage medium.
Career Highlights
Throughout his career, Seung-man Han has worked with prominent companies in the technology sector. He has been associated with Toshiba Samsung Storage Technology Korea Corporation and Samsung Electronics Co., Ltd. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his skills in optical technology.
Collaborations
Han has collaborated with notable colleagues, including Eun-goo Kim and Ki-bok Kim. These partnerships have likely enhanced his innovative capabilities and contributed to the successful development of his patents.
Conclusion
Seung-man Han's contributions to optical technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative designs continue to influence advancements in optical pickups and information storage systems.
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.