Location History:
- Tokorozawa, JP (2008)
- Itabashi, JP (2009)
- Itabashi-ku, JP (2009)
- Tokyo, JP (1979 - 2011)
Company Filing History:
20 out of 3,132 
18 out of 5,225 
1 out of 1,056 
Years Active: 1979-2011
Title: Yasuyuki Tejima: Innovator in Projection Technology
Introduction: Yasuyuki Tejima, a prolific inventor based in Tokyo, Japan, has made significant contributions to the field of projection technology. With a remarkable portfolio of 37 patents, Tejima's work focuses on enhancing the accuracy and functionality of distance measuring devices and projection systems.
Latest Patents: Two of Tejima's latest patents exemplify his innovative spirit. The first patent is for a distance measuring device and a projector that incorporates this technology. This device allows for precise distance measurements over a wide range, featuring a sophisticated projector that includes a control unit to manage the light source and display device effectively. A unique aspect of this invention is its ability to calculate distances to multiple points on a screen, thus correcting image distortion based on screen inclination.
The second notable patent involves a zoom lens system designed for use in projectors. This lens system is meticulously structured to improve zooming operations, featuring three distinct lens groups that work in harmony to achieve a smooth transition from wide angle to telephoto views. The movement of various lens groups is carefully calibrated to ensure optimal performance during operation.
Career Highlights: Tejima's impressive career includes tenure at prominent companies such as Asahi Kogaku Kogyo K.K and Casio Computer Co., Ltd. His experience in these organizations has undoubtedly contributed to the depth of knowledge and expertise he brings to his inventions.
Collaborations: Throughout his professional journey, Tejima has worked alongside notable colleagues, including Etsuro Kawakami and Ryota Ogawa. These collaborations have likely fostered a creative atmosphere that encourages the development of groundbreaking technologies in projection systems.
Conclusion: Yasuyuki Tejima stands out as a key innovator in the realm of projection technology, continuously pushing the boundaries of what is possible. His dedication to precision and quality in his inventions has paved the way for advancements that benefit various industries and applications. As his portfolio grows, so does the potential for transformative impacts in technology.