= 0.64 Location History:
- Tokyo, JP (1990 - 1996)
- Kanagawa, JP (1985 - 1999)
- Shizuoka, JP (2002)
- Kanagawa-ken, JP (2010 - 2015)
- Yokohama, JP (1984 - 2021)
Company Filing History:
34 out of 52,711 
21 out of 265 
7 out of 58,129 
Years Active: 1984-2021
Title: Hajime Takeuchi: A Pioneer in LED Technology
Introduction
Hajime Takeuchi, based in Yokohama, JP, is a notable inventor renowned for his contributions to the field of light-emitting devices, particularly in the development of LED technology. With an impressive portfolio of 43 patents, he has significantly advanced innovations in illumination and display technologies.
Latest Patents
Takeuchi's latest patents encapsulate groundbreaking designs in LED lamps and light-emitting devices. One notable patent describes a white LED lamp featuring a conductive portion with a light-emitting diode chip that emits primary light with a peak wavelength ranging from 360 nm to 420 nm. This device employs a transparent resin layer to seal the LED chip, along with a phosphor layer that converts the primary light into secondary light of longer wavelengths, achieving an energy efficiency benchmark of 0.4 mW/lm or less. Additionally, he has developed an LED light-emitting device that utilizes a specially formulated phosphor, delivering high color rendering properties alongside enhanced luminescence and uniformity.
Career Highlights
Throughout his distinguished career, Hajime Takeuchi has served in prominent companies such as Toshiba Corporation and Toshiba Materials Co., Ltd. His work primarily focuses on enhancing lighting technology through innovative methodologies and advanced materials, making substantial impacts in various applications for LED products.
Collaborations
Takeuchi has collaborated with esteemed colleagues, including Yasuhiro Shirakawa and Yasumasa Ooya, leveraging their expertise to foster advancements in LED technology. Their collaborative efforts have led to the refinement of color uniformity and luminescence in LED applications, further cementing Takeuchi's reputation as a significant contributor in this technological arena.
Conclusion
Hajime Takeuchi exemplifies the spirit of innovation, pushing the boundaries of LED technology and paving new pathways for lighting solutions. His numerous patents and collaborative projects underscore his role as a prominent inventor whose work will continue to influence future developments in the field of illumination.
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.