This inventor holds 41 USPTO granted patents and 7 published patent applications and 2 EPO patents, primarily in Electron Beam Technology. Top assignees: Hitachi, Ltd., Hitachi High-Tech Corporation, Hitachi Displays, Ltd.. Active years: 1999-2025.
Location History:
- Kodaira, JP (1999)
- Tikorozawa, JP (2003)
- Tokorozawa, JP (2001 - 2014)
- Tokyo, JP (2019 - 2024)
Company Filing History:
28 out of 42,719 
6 out of 1,372 
4 out of 1,207 
Years Active: 1999-2025
Areas of Expertise:
Title: Toshiaki Kusunoki: Innovator in Scintillator and Electron Source Technologies
Introduction
Toshiaki Kusunoki, located in Tokorozawa, Japan, is a distinguished inventor known for his significant contributions to the fields of scintillator technology and electron sources. With an impressive portfolio of 38 patents, Kusunoki has established a reputation for innovation and excellence in research.
Latest Patents
Kusunoki's latest patents showcase his expertise in advanced measurement and imaging devices. One of his notable inventions is a scintillator that improves emission intensity, featuring a sapphire substrate with a GaN layer, a quantum well structure, and a conductive layer. This innovative design includes multiple emitting and barrier layers made of InGaN and GaN, along with an oxygen-containing layer to enhance performance.
Additionally, Kusunoki developed an electron source comprising a columnar chip of hexaboride single crystal, held within a metal pipe and connected to a filament. The unique conical shape of the chip, with its (310) crystal face, enables the emission of Schottky electrons, resulting in a source with remarkable monochromaticity, long-term stability, and high current density. These patents underline Kusunoki's commitment to advancing technology in his field.
Career Highlights
Throughout his career, Toshiaki Kusunoki has been associated with prominent companies such as Hitachi, Ltd. and Hitachi Displays, Ltd. His work within these organizations has contributed to various groundbreaking technologies, demonstrating his role as a leading innovator.
Collaborations
Kusunoki has collaborated with esteemed coworkers, including Mutsumi Suzuki and Masakazu Sagawa. These partnerships have enriched his research endeavors, allowing for the development of high-impact inventions that address complex technological challenges.
Conclusion
In conclusion, Toshiaki Kusunoki stands out as a prolific inventor and innovator in the realm of scintillator and electron source technology. Through his extensive patent portfolio and collaborative efforts, he has made significant strides that advance the fields of measurement and imaging devices. His contributions continue to influence the landscape of scientific research and development in Japan and beyond.