Keiji Kakinuma

Title: Keiji Kakinuma: Innovator in Optical Disk Technology

Introduction

Keiji Kakinuma is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 5 patents. His innovative work has paved the way for advancements in the production and quality of bonded optical disks.

Latest Patents

Kakinuma's latest patents include a bonded optical disk with an internal abutting structure designed to control the spacing of bonded halves and the thickness of the bond layer. This invention involves two base disks bonded together using UV-setting adhesive. One or two of the base disks feature a projection located inside the adhesive application starting position. This projection helps maintain a predetermined distance between the bonded surfaces of the base disks, ensuring a consistent thickness for the adhesive layer. The design allows for easier management of the adhesive layer thickness, facilitating steady mass production of bonded optical disks with uniform adhesive layer thickness.

Career Highlights

Throughout his career, Kakinuma has worked with prominent companies such as Toshiba EMI Limited and Kabushiki Kaisha Toshiba. His experience in these organizations has contributed to his expertise in optical disk technology and innovation.

Collaborations

Kakinuma has collaborated with notable coworkers, including Hideyuki Irie and Takeshi Hagio. Their combined efforts have further advanced the field of optical disk technology.

Conclusion

Keiji Kakinuma's contributions to optical disk technology through his patents and collaborations highlight his role as an influential inventor in this field. His work continues to impact the industry positively.