A Global Musical Instrument Manufacturer Takes on the Unprecedented Challenge of Developing a Quiet Electronic Drum KitA Seismometer Monitoring a Giant Dam!Behind the Scenes in Developing Noise-induced Damage Prevention Navigation (tentative name)Rion’s Activity ReportPart 5: Laser Equipment EngineersPROJECT STORY A Documentary of Product Development at RionRION QUALITY Rion’s Pride—Our Skills and Passion for Quality Designing and Manufacturing MoldsUnparalleled Craftsmanship and Uncompromising DedicationNEW AND NOTABLE PRODUCTS Insights into Rion’s Products—Introducing Their Unique Features!Part 5: The KC-52A Airborne Particle Counter TALES OF RION Stories of Rion Products and Daily Life!IN THE BACKYARD On the Front Lines of Technology DevelopmentACTIVITYLICENSING AND QUALIFICATIONSOUR FAVORITE TOWN, KOKUBUNJI Rion Staff Show You AroundRion Meets KOKUBUNJIThe City Hall as a Representation of the CityEPILOGUE SCIENCE, SCIENCE! A Column by Rion’s Staff on Their Obsession with ScienceBecause We’re Science and Math LoversNo. 009 The Gradient Descent MethodNo portion of this journal may be reprinted or redistributed without prior consent.CopyrightⒸ RION All Rights ReservedEditorial ForewordCover Art: An audiology roomAn audiology room is like a relaxing stage designed to ease tension. The room is bathed in soft light and features an unthreatening configuration of sophisti-cated testing equipment and flexible cables. Whether selecting hearing aids or getting adjustments, vis-itors feel as if they’re being gently held in a warm, soothing embrace from the moment they enter. Here, hearing is carefully measured; through delicate ad-justments of hearing aids, the door to a rich, resonant world of sound is quietly opened. This work is an im-age of such a portal. (At Rionet Center Shinjuku)Yusuke Kitajima (woodblock artist)Completed a graduate course in block printing at Musashino Art University in 2014. His distinctive ap-proach, which takes familiar everyday items as sub-jects, combines woodblock printing and monotyping to create unique, one-of-a-kind prints.I’ve been involved in editing the RION Technical Journal since volume 12, and this was my first time participating in a photo shoot. We set up an in-house temporary studio, where I got to see various professional techniques, which involve making small adjustments that make a big difference in the final photo, like adjusting the positions of the subjects and adjusting the lighting to account for reflections. I hope you’ll enjoy not just reading the articles on technologies, but appreciate the technical aspects, including photography and editing techniques, used to effectively convey the technologies. (Ito)Thank you for taking the time to read the RION Technical Journal. I joined the editorial committee starting with this issue. I’ve already had the oppor-tunity to participate in various interviews. Although I’ve worked at Rion for quite some time, I’ve found much that’s new. I look forward to each interview with excitement. While the topics covered by the articles vary depending on the section, everyone on the editorial committee is working hard to achieve the goals we’ve set. I hope to convey the passion of Rion employees and everyone else involved in our company through this magazine. (Tanaka)2025/8Vol.1402 0610121416181920
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