Company Filing History:
2 out of 1,116 
1 out of 1,257 
1 out of 158 
Years Active: 2003-2025
Title: Keisuke Igarashi: Innovator in Advanced Optical Technologies
Introduction
Keisuke Igarashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technologies, holding a total of five patents. His innovative work focuses on enhancing the functionality and efficiency of various devices, particularly in the automotive and charged particle beam sectors.
Latest Patents
One of Igarashi's latest patents is a headlight device designed for vehicles. This device includes a light source unit with multiple light-emitting units that emit light with different spectral distributions. The headlight device is capable of emitting illuminating light that combines these spectral distributions. Additionally, it features an acquisition unit that gathers environmental information about the surroundings of the illumination region. A control unit then adjusts the spectral distributions based on this acquired information.
Another notable patent is for a charged particle beam apparatus and its focus adjusting method. This invention allows for automatic focus adjustment, even for samples with varying heights. The apparatus includes a sample holder, a sample stage, a charged particle gun, and a control device that calculates height information from optical images. This innovation significantly enhances the precision of observations in charged particle beam applications.
Career Highlights
Throughout his career, Keisuke Igarashi has worked with esteemed companies such as Hitachi High-Tech Corporation and Hitachi Kokusai Electric Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Igarashi has collaborated with notable colleagues, including Kazuo Akaike and Yuzo Miura. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Keisuke Igarashi's contributions to optical technologies and his innovative patents demonstrate his commitment to advancing the field. His work continues to influence the development of more efficient and effective devices in various industries.
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.