Company Filing History:
4 out of 176 
1 out of 3,132 Years Active: 1991-1992
Title: Innovations of Hiroaki Andoh
Introduction
Hiroaki Andoh is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical systems and drawing apparatuses. With a total of five patents to his name, Andoh's work showcases his expertise and innovative spirit.
Latest Patents
One of Hiroaki Andoh's latest patents is a drawing surface adjusting mechanism for scanning pattern drawing. This mechanism is designed for use with large scanning pattern drawing apparatuses. It features a scanning optical system that scans drawing rays of light along scanning lines on a workpiece. The invention includes multiple light-emitting units that project rays of light outside the sensitivity range of the workpiece. These rays converge at multiple points along the scanning line, enhancing the precision of the drawing process. Additionally, a plurality of condenser lenses focuses the beams of light after reflection from the drawing surface. Light-detecting elements produce output signals that indicate differences in condensation points, allowing for adjustments in the scanning process.
Another significant patent by Andoh is an apparatus for correcting scanning beams based on the tilting of surfaces. This apparatus addresses the challenges posed by uneven mirror surfaces of a polygonal mirror. It stores data indicative of the tilting amount in memory, which is accessed based on the current scanning position. The output data is then applied to an acousto-optical modulator in the beam path, ensuring accurate beam correction.
Career Highlights
Hiroaki Andoh has worked with prominent companies in the optical industry, including Asahi Kogaku Kogyo K.K. and Asahi Kogaku Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his development as an inventor and innovator in optical technologies.
Collaborations
Andoh has collaborated with notable individuals in his field, including Michio Ohshima and Yuji Matsui. These collaborations have likely enriched his work and led to advancements in his inventions.
Conclusion
Hiroaki Andoh's contributions to optical systems and drawing apparatuses highlight his innovative capabilities and dedication to advancing technology. His patents reflect a deep understanding of the complexities involved in optical engineering.