This inventor holds 8 USPTO granted patents. Top assignees: Kitagawa Industries Co., Inc., Toyota Jidosha Kabushiki Kaisha, Toyota School Foundation. Active years: 2000-2003.
Company Filing History:
1 out of 260 
1 out of 38,837 
1 out of 44 Years Active: 2000-2003
Title: Akira Ikushima: Innovator in Silica Glass Fiber Technology
Introduction
Akira Ikushima is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the field of silica glass fiber technology, holding a total of 8 patents. His innovative methods have paved the way for advancements in optical materials and production techniques.
Latest Patents
One of Ikushima's latest patents is a method of processing a silica glass fiber by irradiating it with UV light and annealing. This processing method enhances the UV resistance of long fibers through a combination of UV irradiation and heat treatment. The technique involves positioning a heating furnace so that the left end of the silica glass fiber is within it. As the furnace moves to the right, UV light is directed at the left end surface of the fiber. This process removes structural defects, allowing the UV light to penetrate further and continue the defect removal process. By repeating these steps, mass production becomes feasible, leading to improved productivity and reduced costs.
Another notable patent is related to an optical nonlinearity material and its production method. In this innovation, voltage is applied between electrodes under UV irradiation to perform UV excitation poling, resulting in the production of microcrystal particles at a core unit. This method allows for the development of second-order optical nonlinearity in optical fibers, even under high-temperature conditions, using comparatively low-voltage UV excitation poling.
Career Highlights
Throughout his career, Akira Ikushima has worked with notable companies, including Toyota Motor Corporation. His experience in these organizations has contributed to his expertise in the field of optical materials and fiber technology.
Collaborations
Ikushima has collaborated with talented individuals such as Takumi Fujiwara and Seiki Ejima. Their joint efforts have further advanced the innovations in silica glass fiber technology.
Conclusion
Akira Ikushima's contributions to silica glass fiber technology and optical materials have established him as a key figure in the field. His innovative patents and collaborative efforts continue to influence advancements in this area.