Takumi Ishiwata

Title: The Innovations of Takumi Ishiwata

Introduction

Takumi Ishiwata is a notable inventor based in Mitaka, Japan. He has made significant contributions to the field of electromagnetic wave technology, holding a total of 5 patents. His work focuses on developing advanced devices that utilize electromagnetic waves for various applications.

Latest Patents

One of Takumi Ishiwata's latest patents is a tag that indicates an attribute of the tag by an electromagnetic wave reflection characteristic. This tag includes a substrate and a conductor pattern layer formed on the substrate, featuring first and second slots disposed adjacent to each other. The first slot constitutes a first resonance element with a resonance frequency at a first frequency, while the second slot constitutes a second resonance element with a resonance frequency at a higher second frequency. When electromagnetic waves are irradiated, the Q value of a resonance peak at the first frequency is higher than that of the resonance peak when the first slot alone constitutes a resonance structure of the tag.

Another significant patent is a learning device, reader, and learning program. This learning device is equipped with a simulation execution unit that determines a reflected wave spectrum when electromagnetic waves are emitted from a reader to an identification target. It also includes a machine learning unit that performs a training process on a learning model using training data defined as a set of reflected wave spectra and their attributes. The simulation execution unit generates multiple reflected wave spectra belonging to the same attribute by varying parameters related to the identification target.

Career Highlights

Takumi Ishiwata is currently employed at Konica Minolta, Inc., where he continues to innovate and develop new technologies. His work has been instrumental in advancing the understanding and application of electromagnetic wave technology.

Collaborations

Throughout his career, Takumi has collaborated with notable colleagues, including Nobuaki Takahashi and Takeshi Hakii. These collaborations have contributed to the success of various projects and innovations.

Conclusion

Takumi Ishiwata's contributions to the field of electromagnetic wave technology are significant and impactful. His innovative patents and ongoing work at Konica Minolta, Inc. highlight his dedication to advancing technology.