This inventor holds 3 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Ricoh Company, Ltd., Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1981-1989.
Company Filing History:
1 out of 53,250 
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Years Active: 1981-1989
Title: Yuichi Saitoh: Innovations in Battery Technology and Semiconductor Memory
Introduction
Yuichi Saitoh is an accomplished inventor based in Tokyo, Japan, known for his contributions in the fields of battery technology and semiconductor memory devices. With a total of three patents to his name, Saitoh has made significant advancements that enhance performance and efficiency in electronic devices.
Latest Patents
Among Saitoh's latest patents, one stands out: a device for detecting the residual capacity of a battery. This innovative device utilizes a battery current measuring circuit to assess the current flow and a battery voltage measuring circuit to monitor voltage levels. By employing a converting circuit, the device transforms the measured current into a voltage value based on the battery's internal impedance. A comparator circuit then assesses the conversion voltage against the measured voltage, providing a vital signal when the battery's residual capacity is low.
Another notable patent is the cassette type semiconductor memory device, which integrates a RAM and a backup battery within a cassette format. This innovative design features a connector that links to the mainframe of a data processor, ensuring that the RAM and its surrounding circuits are consistently powered. The device employs mechanisms to detect live-line insertion or removal of the memory pack by monitoring the power source voltage, prohibiting memory access during these transitions and protecting the system from potential interruptions.
Career Highlights
Yuichi Saitoh's career includes significant tenures at renowned companies such as Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd. His work in these leading organizations has helped propel advancements in consumer electronics and memory technologies.
Collaborations
Throughout his career, Saitoh has collaborated with esteemed colleagues, including Shizuo Morioka and Mutsuo Ogawa. These partnerships have contributed to the exchange of ideas and innovative solutions in the fast-paced world of technology.
Conclusion
In summary, Yuichi Saitoh's contributions to battery detection technologies and semiconductor memory devices underscore his inventive spirit and commitment to innovation. With his ongoing work, he continues to influence the electronic landscape, paving the way for future advancements that improve device functionality and user experience.