Yuta Arai

Title: Yuta Arai: Inventor in Medium-Conveying Technology.

Introduction

Yuta Arai is an inventor based in Kahoku, Japan. His patent work includes technologies for controlling medium-conveying equipment and coordinating image capture with the movement of a medium. He is associated with PFU Limited and has 5 patents.

Latest Patents

Arai’s latest patents address the timing and control of medium-conveying apparatus.

- **Medium conveying apparatus for generating image based on pulse signal whose cycle varies according to rotation of DC motor.** This invention uses a conveyance roller driven by a DC motor, an encoder that produces pulses corresponding to motor speed, and an imaging device triggered by a constant-cycle pulse signal. A processor compares the number of constant-cycle pulses within a defined interval of the encoder signal against a reference number. When the detected count exceeds the reference, the apparatus discards a corresponding number of images during the next interval, helping manage image acquisition as motor speed changes.

- **Medium conveying apparatus for controlling current limit value of DC motor.** This invention adjusts the motor’s current limit according to the medium’s position. The apparatus uses a lower limit until the medium’s front end reaches the area between the conveyance roller and imaging device, then switches to a higher limit. The motor is driven using the higher limit while the imaging device captures the medium.

Career Highlights

Arai’s disclosed inventions focus on the interaction between motor control, medium transport, and imaging. His work describes ways to adapt image timing to changes in motor rotation and to adjust motor current limits during different stages of conveyance.

Collaborations

Arai is associated with PFU Limited. His coworker Shingo Kanaya is also named in the information provided about his work.

Conclusion

Yuta Arai’s patent portfolio highlights practical approaches to coordinating medium movement, motor operation, and image capture in conveying apparatus.