Takeshi Sasaoka

Title: Innovations of Takeshi Sasaoka

Introduction

Takeshi Sasaoka is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of imaging technology, holding a total of four patents. His work primarily focuses on color image pickup apparatuses and color printing processes.

Latest Patents

One of Sasaoka's latest patents is a color image pickup apparatus that utilizes one or more line sensors. This apparatus reads documents through different color filters to generate various color signals. The line sensor or the document is mechanically moved in a sub-scanning direction by a mechanical device. A rotary encoder generates pickup pulses that drive the line sensor each time movement occurs. In an alternate embodiment, multiple line sensors with different color filters read different lines on the document, generating color signals with shifted timings. Frame memories and buffer registers are employed to correct these shifted timings.

Another significant patent is an apparatus for simulating a color printing process. This apparatus includes a scanning unit with a table for placing four color separation films side by side. It features flying spot scanner tubes and lens systems that project raster images onto the films. The system converts light rays passing through the films into subtractive primary color signals. A control unit adjusts and corrects these color signals, while a color reproduction process unit converts them into additive primary color image signals. The final output is displayed on a color monitor unit, which can accurately represent actual printing colors.

Career Highlights

Sasaoka has worked with prominent companies such as Ikegami Tsushinki Co., Ltd. and Dai Nippon Printing Co., Ltd. His experience in these organizations has contributed to his expertise in imaging technologies and color reproduction processes.

Collaborations

Throughout his career, Sasaoka has collaborated with notable individuals, including Satoru Horiguchi and Koichi Shimane. These collaborations have likely enriched his work and led to innovative advancements in his field.

Conclusion

Takeshi Sasaoka's contributions to imaging technology and color reproduction are noteworthy. His patents reflect a deep understanding of color processes and innovative solutions in the field. His work continues to influence advancements in imaging technology.