Company Filing History:
Years Active: 1999-2010
Title: Takehiro Fujii: Innovator in Light-Emitting Diode Technology
Introduction
Takehiro Fujii is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of light-emitting diodes (LEDs), holding a total of 10 patents. His innovative work focuses on enhancing the efficiency and functionality of LED technology.
Latest Patents
One of Fujii's latest patents is a process for producing a light-emitting diode element that emits white light. This invention aims to manufacture a white light-emitting diode element by coating a blue light-emitting diode chip with a synthetic resin containing a fluorescent material. The process involves bonding an LED material plate to an expansion sheet, dividing it into individual LED chips, and forming a synthetic resin layer between the chips. This innovative method allows for the effective production of white light-emitting diodes.
Another notable patent is for a side-emission type semiconductor light-emitting device. This device includes a substrate with a case made of a resin that has opacity and reflectivity. The substrate is equipped with electrodes onto which an LED chip is bonded. A transparent or translucent resin is charged between the substrate and the case, allowing for effective light emission. The roughened surface of the light-emitting surface scatters the light outputted from the LED chip, enhancing its performance.
Career Highlights
Fujii works at Rohm Co., Ltd., a leading company in the semiconductor industry. His role at the company has allowed him to push the boundaries of LED technology and contribute to advancements in the field. His work has been instrumental in developing new methods and devices that improve the efficiency and application of light-emitting diodes.
Collaborations
Throughout his career, Fujii has collaborated with notable colleagues, including Hiroki Ishinaga and Nobuaki Suzuki. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Takehiro Fujii is a key figure in the advancement of light-emitting diode technology. His patents and contributions have significantly impacted the industry, paving the way for future innovations in LED applications. His work continues to inspire and drive progress in the field of semiconductor technology.