Location History:
- Kyoto, JP (2010 - 2012)
- Sapporo, JP (2012 - 2015)
Company Filing History:
3 out of 820 
3 out of 6,017 
2 out of 1,311 
Years Active: 2010-2015
Title: Kyosuke Sakai: Innovator in Photonic Crystal Lasers
Introduction
Kyosuke Sakai is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of photonic crystal lasers, holding a total of 5 patents. His innovative work has advanced the technology of laser beams, making them more efficient and effective.
Latest Patents
Sakai's latest patents include groundbreaking inventions such as the photonic crystal laser and the two-dimensional photonic crystal laser. The photonic crystal laser is capable of producing a radially-polarized halo-shaped laser beam that has a smaller width than conventional beams. This invention features an active layer and a ring-shaped photonic crystal with a plate-shaped base body. The base body contains a number of modified refractive index areas that are periodically arranged in the circumferential direction of the ring. Each modified refractive index area is asymmetrically shaped, enhancing the laser's performance.
The two-dimensional photonic crystal laser consists of a two-dimensional photonic crystal made from a plate-shaped member. This member has a periodic arrangement of identically-shaped modified refractive index areas. These areas are designed to provide different feedback strengths in relation to the directions of two primitive lattice vectors. This innovative design allows for a more controlled and efficient laser output.
Career Highlights
Kyosuke Sakai has worked with esteemed institutions such as Kyoto University and Rohm Co., Ltd. His experience in these organizations has allowed him to collaborate with leading experts in the field, further enhancing his contributions to laser technology.
Collaborations
Sakai has collaborated with notable coworkers, including Susumu Noda and Yoshitaka Kurosaka. Their joint efforts have played a crucial role in the development of advanced photonic technologies.
Conclusion
Kyosuke Sakai's innovative work in photonic crystal lasers has significantly impacted the field of laser technology. His patents reflect a commitment to advancing the efficiency and effectiveness of laser systems.