Company Filing History:
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1 out of 42,517 
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Years Active: 2006-2007
Title: Hidetaka Karita: Innovator in Semiconductor Laser Technology
Introduction
Hidetaka Karita is a prominent inventor based in Miyota, Japan. He has made significant contributions to the field of semiconductor laser technology, holding a total of 2 patents. His work focuses on enhancing the reliability and efficiency of semiconductor laser elements.
Latest Patents
Karita's latest patents include innovations in semiconductor lasers and their manufacturing processes. One of his notable patents describes a semiconductor laser element designed to reduce both contact resistance and thermal resistance, thereby achieving high reliability. This semiconductor laser element comprises a semiconductor substrate, an active layer, a ridge with a clad layer, and a contact layer. An insulation film covers the side surfaces of the clad layer, and an electrode is connected to the contact layer. The insulation layer's end portion is strategically located between the upper and lower surfaces of the contact layer, enhancing the device's performance.
Another patent focuses on a semiconductor laser device that similarly aims to reduce contact resistance and thermal resistance. The design and components mirror those of his previous patent, emphasizing the importance of these features in achieving reliable semiconductor laser elements.
Career Highlights
Throughout his career, Hidetaka Karita has worked with notable companies such as Opnext Japan, Inc. and Hitachi, Ltd. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.
Collaborations
Karita has collaborated with esteemed colleagues, including Haruki Fukai and Atsushi Nakamura. These partnerships have fostered a creative environment that has led to advancements in semiconductor laser technology.
Conclusion
Hidetaka Karita's contributions to semiconductor laser technology are noteworthy, with his patents reflecting a commitment to innovation and reliability. His work continues to influence the field, showcasing the importance of advancements in semiconductor devices.