Seiiku Ito is a notable inventor based in Amagasaki, Japan. He has made significant contributions to the field of light measurement technology, holding 2 patents that showcase his innovative approach to solving complex problems in this area.

Latest Patents

One of his latest patents is the Multi-channel spectral light measuring device. This device allows for accurate measurement of light even when the incident light varies over time or when the luminance of the object being measured is insufficient. The device features a branched optical fiber with three independent light transmission paths, enabling it to introduce light from a common input to three output ends. The optical fiber's input end is positioned slightly defocused from an objective lens, while the output ends are aligned with three light receiving elements that have different spectral sensitivities. This design allows for simultaneous conversion of light components into electric signals, which are then transformed into digital values by circuit means that include a double integration analog to digital converter. The device also adjusts the gain of the associated analog to digital converter when luminance is insufficient, ensuring accurate light measurement.

Another significant patent is the Double integration analog to digital converting device. This device converts analog input signals into digital values that accurately correspond to the input signals, even when there are differences among them. It consists of an integrating circuit with an operational amplifier that receives an analog signal, an integrating capacitor, and a reset switch. The circuit performs both integrating and inverse integrating operations, with a comparator connected to the output terminal. Additionally, a diode or transistor limits the charge accumulated in the integrating capacitor during the inverse integrating operation.

Career Highlights

Seiiku Ito is currently associated with Minolta Camera Kabushiki Kaisha, where he continues to develop innovative technologies in light measurement. His work has significantly advanced the capabilities of light measuring devices, making them more reliable and effective in various applications.

Collaborations

Throughout his career, Seiiku Ito has collaborated with talented individuals such as Yoshihiro Okui and Masami Sugiyama. These collaborations have contributed to the development of cutting-edge technologies and have fostered a creative environment for innovation.

Conclusion

Seiiku Ito's contributions to light measurement technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in measurement

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