Takeshi Osawa is a notable inventor based in Takasago, Japan. He has made significant contributions to the field of automotive technology, holding a total of 6 patents. His work focuses on enhancing the efficiency and safety of car power sources.

Latest Patents

One of his latest inventions is the "Car Power Source Apparatus." This apparatus features a leakage detection circuit that includes a battery with multiple battery units connected in series. It also incorporates a first series circuit made up of first leakage detection resistors and a first leakage detection switch, which connects the first connection node of the series-connected battery units to ground. Additionally, a second series circuit is included, which consists of second leakage detection resistors and a second leakage detection switch to connect the second connection node of the series-connected battery units to ground. The apparatus is equipped with voltage detection circuits to monitor the voltage of both the first and second leakage detection resistors. Furthermore, it has a failure detection circuit that controls the first and second leakage detection switches and determines any failures in the leakage detection circuit based on the voltages detected.

Another significant patent is the "Electric Power Source for Motor Vehicle." This invention is designed with a welded state discriminator. While controlling the positive-side and negative-side contactors to be switched off, the welded state discriminator detects the voltage of either contactor on its loading side relative to the connecting point of a battery unit on the positive side and a battery unit on the negative side. If the detected voltage exceeds a predetermined level, the positive-side contactor is deemed to be in a welded state, and similarly for the negative-side contactor when the voltage is negative.

Career Highlights

Takeshi Osawa has worked with prominent companies in the industry, including Sanyo Electric Co., Ltd. and Tokyo Sanyo Electric Co. His experience in these organizations has contributed to his expertise in developing innovative automotive technologies.

Collaborations

Throughout his career, Osawa has collaborated with talented individuals such as Junya Yano and Kimihiko Furukawa. These partnerships have likely played a role in the successful development of his inventions.

Conclusion

Takeshi Osawa's contributions to automotive technology through his patents demonstrate his commitment to innovation and safety in the industry. His work continues to influence the development of efficient power sources

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