Junichi Motomura

Title: Junichi Motomura: Innovator in Flexible Printed Wiring Technology

Introduction

Junichi Motomura is a prominent inventor based in Osaka, Japan, known for his significant contributions to the field of flexible printed wiring boards. With a total of seven patents to his name, Motomura has made notable advancements in the manufacturing and design of electronic components.

Latest Patents

Among his latest innovations is a flexible printed wiring board that features a base film and multiple wiring lines on its front surface. Each wiring line is designed with a front end surface extending in a longitudinal direction, complemented by two side surfaces that exhibit an arithmetical mean roughness Ra ranging from 0.05 μm to 2.0 μm. The average height of these wiring lines is between 40 μm and 120 μm, with spacing averaging from 1 μm to 30 μm. Another significant patent involves a printed wiring board that includes a base layer with insulating properties, a first conductive layer made of copper foil, and a second conductive layer also made of copper foil. This design incorporates a stacked body for a via hole, which connects the two conductive layers through an electroless copper plating layer that includes palladium.

Career Highlights

Motomura has worked with notable companies such as Sumitomo Electric Industries, Limited and Sumitomo Electric Printed Circuits, Inc. His experience in these organizations has allowed him to refine his expertise in the field of printed circuit technology.

Collaborations

Throughout his career, Motomura has collaborated with esteemed colleagues, including Shoichiro Sakai and Koji Nitta. These partnerships have contributed to the advancement of innovative technologies in the electronics sector.

Conclusion

Junichi Motomura's work in flexible printed wiring technology showcases his dedication to innovation and excellence in the field. His patents reflect a commitment to enhancing the functionality and efficiency of electronic components.