This inventor holds 38 USPTO granted patents, primarily in Optical Devices. Top assignees: Asahi Kogaku Kogyo Kabushiki Kaisha, Pentax Corporation, Hoya Corporation. Active years: 1999-2012.
Company Filing History:
16 out of 3,132Â 
16 out of 1,056Â 
5 out of 2,565Â 
Years Active: 1999-2012
Areas of Expertise:
Title: Innovator Spotlight: Ken Hirunuma
Introduction
Ken Hirunuma is an accomplished inventor based in Tokyo, Japan, known for his significant contributions to the field of optical devices and imaging technology. With a remarkable portfolio of 38 patents, he has made strides in developing innovative solutions that enhance imaging quality and operational efficiency in various applications.
Latest Patents
Hirunuma's recent work includes groundbreaking inventions such as the optical low-pass filter and imaging apparatus. This invention features a light-transmitting substrate that includes at least one birefringent plate and an infrared-cut plate, strategically positioned on the light-receiving surface of an imaging device. The filter is designed with a dust-proofing layer on the light-input surface and an infrared-cut coat layer either on the light-output surface or between the two preceding layers, which ensures the integrity and clarity of the images captured.
Another notable patent is the lock mechanism for a stage apparatus. This innovative mechanism incorporates a movable stage on a stationary member with engaging and lock members that facilitate secure positioning. The design includes both a lock driving device and an unlock driving device, which ensure efficient engagement and disengagement of the stage, thereby enhancing the usability of the apparatus in various contexts.
Career Highlights
Throughout his career, Ken Hirunuma has worked with leading companies such as Asahi Kogaku Kogyo Kabushiki Kaisha and Pentax Corporation. His tenure at these companies has allowed him to collaborate on cutting-edge technologies and refine his expertise, placing him at the forefront of innovation in optical engineering.
Collaborations
Hirunuma has had the opportunity to work alongside talented professionals such as Shinji Tsukamoto and Gouji Funatsu. These collaborations have not only enriched his work experience but have also fostered a creative environment conducive to innovation and the development of new technologies.
Conclusion
Ken Hirunuma stands out as a notable figure in the realm of inventions and innovations. His dedication to advancing imaging technology is commendable, as reflected in his extensive patent portfolio. His contributions continue to influence the industry and inspire future generations of inventors.