This inventor holds 1 USPTO granted patent. Top assignees: Hitachi Electronics, Ltd., Hitachi, Ltd.. Active years: 1978.
Company Filing History:
1 out of 11 
1 out of 42,719 
Years Active: 1978
Title: Haruo Matumaru: Innovator in Color Pick-Up Tube Technology
Introduction
Haruo Matumaru is a notable inventor based in Tokyo, Japan. He is recognized for his contributions to the field of color pick-up tube technology. His innovative designs have led to advancements in imaging technology, particularly in the area of color reproduction.
Latest Patents
Matumaru holds a patent for a "Face plate for color pick-up tube." This invention features a transparent substrate with stripe-like color filters formed on it. Additionally, it includes a protection layer that covers the stripe color filters and exposed portions of the substrate. The design also incorporates stripe-like transparent electrodes, a photoconductive layer, bus bar electrodes, and an insulation layer. The unique aspect of this invention is that the insulation layer and protection layer are made from different materials, which have varying resistances to etching solutions. This design protects the stripe-like filters from damage during the photoetching treatment.
Career Highlights
Throughout his career, Haruo Matumaru has worked with prominent companies such as Hitachi, Ltd. and Hitachi Electronics, Ltd. His experience in these organizations has contributed significantly to his expertise in the field of imaging technology.
Collaborations
Matumaru has collaborated with notable colleagues, including Toshio Nakano and Akira Sasano. Their combined efforts have furthered advancements in technology and innovation.
Conclusion
Haruo Matumaru's contributions to the field of color pick-up tube technology exemplify his innovative spirit and dedication to advancing imaging technology. His patent and collaborations reflect a commitment to excellence in his work.