Location History:
- Kumamoto, JP (2002 - 2004)
- Kikuchi-gun, JP (2005 - 2010)
- Chiyoda-ku, JP (2015)
- Tokyo, JP (1990 - 2019)
- Chofu, JP (2011 - 2023)
Company Filing History:
14 out of 15,844 
8 out of 21,351 
5 out of 1,152 
Years Active: 1990-2023
Title: Innovations of Seiji Sakai: A Pioneer in Light Source Technologies
Introduction: Seiji Sakai is a renowned inventor based in Tokyo, Japan, recognized for his remarkable contributions to the field of light source devices. With a prolific portfolio of 27 patents, Sakai has made significant strides in developing advanced technologies that underpin modern display systems.
Latest Patents: Among his latest innovations, Sakai holds patents for a Surface Light Source Device and a Display Device. The surface light source device incorporates a light source substrate with multiple independently driven light sources, paired with a light guide plate that effectively emits light from a specified surface. This design also features a partition frame with cutout portions that allow for connectivity between adjacent cells.
Another noteworthy patent describes a point light source that utilizes an envelope comprising four distinct surfaces. This innovative design enhances the functionality of the light-emitting element by creating depressions that optimize light emission from the source, promoting improved display quality and efficiency.
Career Highlights: Throughout his career, Seiji Sakai has worked with esteemed companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has played a crucial role in honing his skills as an inventor and advancing technology in the light source domain.
Collaborations: Sakai has collaborated with notable figures in the field, including Toshiyuki Yoneda and Takuya Sakamoto. Their combined expertise has been instrumental in propelling innovative projects forward, highlighting the collaborative spirit of the research and development community.
Conclusion: Seiji Sakai stands out as a significant inventor whose contributions to light source technologies continue to influence the industry. His 27 patents showcase a dedication to innovation and quality, ensuring that his work remains relevant and impactful in the fast-evolving world of display devices.
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.