Shuji Otsuka is a notable inventor based in Higashiosaka, Japan. He has made significant contributions to the field of portable communication devices, holding a total of 6 patents. His work focuses on enhancing communication technology, making it more accessible and user-friendly.

Latest Patents

One of Otsuka's latest inventions is a portable communication device that includes a GPS antenna and a GPS processing circuit. This device determines its location based on signals received by the antenna. It features a location information processing circuit that detects location information corresponding to the determined result. Additionally, it includes a key input device for inputting a telephone number of a communication terminal device to transmit the location information. A unique aspect of this device is the inclusion of a LOST key, which, when manipulated, allows the control circuit to feed the detected location information to the transmitting circuit. This innovation enables the device to notify others of its accurate present location.

Another significant invention by Otsuka is a foldable portable communication terminal device. This device consists of a main body case and a lid case that are openably connected. The main body case is equipped with an up key and a down key. The control circuit within the device switches the power supply on and off when both keys are held depressed simultaneously for a predetermined period. This feature allows the device to turn off its power source when the main body case and lid case are folded together, enhancing its usability and convenience.

Career Highlights

Shuji Otsuka has been associated with Sanyo Electric Co., Ltd., where he has contributed to various innovative projects. His work has significantly impacted the development of portable communication technologies, making them more efficient and user-friendly.

Collaborations

Otsuka has collaborated with notable coworkers, including Hideji Kawasaki and Hiroomi Kashu. Their combined efforts have led to advancements in communication technology, further enhancing the capabilities of portable devices.

Conclusion

Shuji Otsuka's contributions to the field of portable communication devices demonstrate his innovative spirit and dedication to improving technology. His patents reflect a commitment to enhancing user experience and functionality in communication devices.

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