This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Toppan Printing Co., Ltd., Hitachi Electronics, Ltd.. Active years: 1976-1981.
Location History:
- Tokyo, JA (1976)
- Tokyo, JP (1978 - 1981)
Company Filing History:
3 out of 1,269 
1 out of 11 Years Active: 1976-1981
Title: Ikuo Seki: Innovator in Color Technology
Introduction
Ikuo Seki is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of color technology, particularly in the areas of color printing and density measurement. With a total of 3 patents to his name, Seki's work has had a lasting impact on the industry.
Latest Patents
One of Seki's latest patents is the Color Facsimile Previewer. This invention is a color separation condition determining apparatus that aids in establishing the operational conditions for the color separation step in a color printing process. The apparatus includes a scanning section, a masking circuit, an under-color removal circuit, clip circuits, a gradation correction circuit, a color correction circuit, a matrix circuit, and a color monitor utilizing a color CRT. Additionally, it features a method for correcting color signals and a masking circuit for the apparatus.
Another significant patent is the Density Measuring Device. This device allows for the easy and quick measurement of the optical densities of original pictures. It operates by scanning an original picture with a scanning device to obtain electrical signals, which are then converted into secondary electrical signals corresponding to the optical density. Calibration signals generated by a calibration signal generator are added to these secondary electrical signals, and the combined signals are displayed on a waveform monitor.
Career Highlights
Throughout his career, Ikuo Seki has worked with prominent companies such as Toppan Printing Co., Ltd. and Hitachi Electronics, Ltd. His experience in these organizations has contributed to his expertise in color technology and innovation.
Collaborations
Seki has collaborated with several notable individuals in his field, including Masahiko Kato and Hisao Katogi. These collaborations have further enriched his work and contributed to advancements in color technology.
Conclusion
Ikuo Seki's contributions to color technology through his patents and career achievements highlight his role as an influential inventor. His work continues to inspire advancements in the field of color printing and measurement.