Location History:
- Sayama, JP (1992)
- Osakasayama, JP (1992 - 1994)
- Osaka, JP (1980 - 2002)
- Kawachinagano, JP (2002)
Company Filing History:
30 out of 2,979 
3 out of 2,816 
2 out of 76 Years Active: 1980-2002
Title: Innovator Spotlight: Hisashi Tokumaru - Pioneering Optical Systems and Cameras
Introduction: Hisashi Tokumaru, a prolific inventor based in Osaka, Japan, has made remarkable contributions to the field of optical systems and cameras. With an impressive portfolio of 35 patents, Tokumaru's innovative work has significantly advanced the fields of illumination technology and photography.
Latest Patents:
1. Illumination Optical System and Projector: Tokumaru's patented illumination optical system features a lens array that divides light from a source into multiple beams. The system includes a polarized light conversion optical setup with a prism array that separates and converts linearly polarized light beams. This innovative design offers enhanced light control and efficiency for projectors.
2. Camera with Varifocal Lens: Tokumaru's varifocal lens camera allows for easy adjustment of the object-to-frame ratio. By utilizing a focusing lens in conjunction with the varifocal lens, the camera ensures precise focus and size control. This novel approach simplifies zooming and framing adjustments, making photography more accessible.
Career Highlights: Hisashi Tokumaru is associated with Minolta Camera Kabushiki Kaisha, a renowned company in the imaging industry. His innovative spirit and technical expertise have played a pivotal role in driving advancements in optical technologies within the organization.
Collaborations: Throughout his career, Tokumaru has collaborated closely with esteemed colleagues such as Tokuji Ishida and Hisayuki Masumoto. Together, they have synergized their talents to create cutting-edge optical solutions and imaging devices that push the boundaries of innovation.
Conclusion: Hisashi Tokumaru's groundbreaking inventions in illumination systems and cameras exemplify his visionary approach to technological development. His commitment to pushing the boundaries of optical innovation has cemented his legacy as a trailblazing inventor in the fields of optics and imaging.