Location History:
- Ibaraki, JP (1991 - 2010)
- Minori, JP (2007 - 2011)
- Omitama, JP (2008 - 2013)
Company Filing History:
8 out of 42,508 
3 out of 1,645 
1 out of 1,267 Years Active: 1991-2013
Title: Innovations by Yoshikazu Ishitsuka
Introduction
Yoshikazu Ishitsuka is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of excrement treatment technology, holding a total of 8 patents. His work focuses on improving the efficiency and effectiveness of devices designed for managing human waste.
Latest Patents
One of his latest inventions is the "Excrement Treating Apparatus." This apparatus includes an excretion receiver and an apparatus body. The excretion receiver consists of a receiver body that collects excretions and an excretion sensor that detects them. The apparatus body features a urine tank for storing urine, a vacuum pump that transfers urine from the receiver body to the tank, and a control unit. The excretion sensor is equipped with a pair of urine sensor electrodes that accurately detect urine. The control unit is designed to reverse the polarity of the urine sensor electrodes at specified time intervals, ensuring stabilized sensitivity and precise detection of urination.
Another significant patent is the "Automatic Urine Disposal Device and Urine Receptacle Used Therefor." In this invention, a urine backflow prevention sheet, which is impermeable to water and has funnel-shaped pores, is positioned between a top sheet and a urine absorbing sheet. A pair of rectangular electrodes, forming a urine detection sensor, is affixed to an electrode support sheet and placed between the top sheet and the urine backflow prevention sheet. This design enhances the functionality of the urine receptacle by preventing backflow and ensuring effective detection.
Career Highlights
Yoshikazu Ishitsuka has worked with prominent companies such as Hitachi, Ltd. and Unicharm Corporation. His experience in these organizations has contributed to his expertise in developing innovative solutions for waste management.
Collaborations
He has collaborated with notable coworkers, including Ryosuke Miyagawa and Tetsuya Tanaka, who have played a role in his inventive journey.
Conclusion
Yoshikazu Ishitsuka's contributions to excrement treatment technology demonstrate his commitment to innovation and improving public health. His patents reflect a deep understanding of the challenges associated with waste management and a dedication to finding effective solutions.