ZAMST Announces Sponsorship Agreement with Professional Golfer Ryo Katsuta

Japan Sigmax Co., Ltd. (headquartered in Shinjuku-ku, Tokyo; President and CEO: Yosuke Suzuki), developer of the sports support and care brand ZAMST, has announced a sponsorship agreement with professional golfer Ryo Katsuta (Katsuta Ryo).

▲ ZAMST has entered into a sponsorship agreement with Ryo Katsuta

■ Background of the Sponsorship Agreement with Ryo Katsuta

Ryo began focusing on baseball until his second year of middle school but decided to step away from the sport due to knee injuries. Following his father's advice, he took up golf and resolved to become a professional, enrolling at Saitama Ei High School, known for its strong golf program.

In 2013, during his third year of high school, he achieved a double victory—both individual and team titles—at the Kanto High School Golf Championship. That same year, his team also won the national championship. Furthermore, in 2016, during his third year at Nihon University, he won the Saitama Open, a tournament in which professionals also compete.

After turning professional in 2017, he steadily built his achievements, securing his first tour card in 2023. In 2025, he claimed his first Japan Golf Tour victory at the Panasonic Open, achieving this milestone in his final year of his twenties. His first tour win in his ninth year as a professional is a testament to his continuous "effort" and "challenge."
ZAMST deeply resonates with Katsuta's playing style and his dedicated approach to the sport, leading to this sponsorship agreement.

Moving forward, ZAMST aims not only to support his performance enhancement but also to jointly deliver value for all golfers.

■ Message from Ryo Katsuta

I am truly honored to enter into this agreement with ZAMST.

While competing across tournaments, I have come to realize how crucial daily conditioning and physical care are to consistently delivering peak performance.

Not only have I started using ZAMST insoles during the off-season, but I also highly appreciate their compression wear and socks.

With ZAMST's support, I will strive to elevate my game and show an improved performance. I appreciate your continued support.

■ Ryo Katsuta Profile

Affiliation: Lopia
Date of Birth: December 27, 1995
Hometown: Saitama Prefecture
Height/Weight: 174 cm / 73 kg

【Main Career Highlights and Achievements】
2013: Kanto High School Golf Championship – Individual Champion, Team Champion
2016: Saitama Open Golf Championship – Winner
2017: Turned Professional
2021: TI Challenge in Tojo no Mori – Tied for 2nd
2022: Mitsui Sumitomo VISA Pacific Masters – 3rd Place
2025: Panasonic Golf Championship – Winner

【Social Media】
Instagram: https://www.instagram.com/katsuryo12/?hl=ja

【ZAMST Products Used by Ryo Katsuta】

▲ ZAMST Footcraft CUSTOM BALANCE
▲ ZAMST Arm Sleeve
▲ ZAMST HA-1 Short

・ZAMST Footcraft CUSTOM BALANCE: https://www.zamst-online.jp/footcraft/custom/balance/
・ZAMST Arm Sleeve: https://www.zamst-online.jp/SHOP/3858.html
・ZAMST HA-1 Short: https://www.zamst-online.jp/SHOP/3750.html

■ About ZAMST (ZAMST)
https://www.zamst-online.jp/

ZAMST is a sports support and care brand established in 1993 by Japan Sigmax Co., Ltd., a medical manufacturer specializing in orthopedic products.

Since its inception, ZAMST has supported athletes who constantly face injury risks, leveraging knowledge and technology cultivated in the medical field.

Building on 30 years of experience and initiatives, ZAMST will continue striving to help all athletes maximize their performance.

ZAMST Brand History

■ ZAMST Partners
https://www.zamst-online.jp/brand/partner

ZAMST supports athletes and teams across various sports—including volleyball, basketball, soccer, tennis, marathon, golf, and badminton—who continuously challenge their limits.

Volleyball: Yushi Nishida, Aoi Takahashi, Taishi Onodera, Tomohiro Yamamoto, Chihiro Sasaki, Airi Miyabe

Basketball: Yuki Togashi, Yuki Kawamura, Yudai Nishida, Kyosuke Terashima, Taiga Okada, Trae Young

Soccer: Ryo Miyaichi, Shinnosuke Hatanaka, Akito Suzuki, Sota Nakamura, Yusuke Kobayashi, Ikuma Utoku, Ryo Sato, Junnosuke Suzuki

Tennis: Yoshihito Nishioka, Nao Hibino, Yosuke Watanuki / Marathon: Reia Iwade / Ski Jumping: Noriaki Kasai

Golf: Umi Anai, Reika Miyako, Miyuu Oguchi / Badminton: Misaki Matsutomo / Baseball: Shogo Akiyama, Tsuyoshi Matsumoto, Yukitoshi Kishida
Fencing: Rio Higashi, Seira Higashi

And many other athletes and teams

■ About Japan Sigmax Co., Ltd.
https://www.sigmax.co.jp/

Headquarters: 1-24-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo

Founded: June 1, 1973

Capital: 90 million JPY

President and CEO: Yosuke Suzuki

Employees: 246 (as of March 2025)

Sales: 14.37 billion JPY (fiscal year ending March 2025)

Japan Sigmax operates in the "Physical Activity Support Industry※," providing products and services related to human physical well-being across various fields. Since its founding, the company has specialized in the orthopedic field within healthcare, offering distinctive products such as joint braces, casts, rehabilitation equipment, icing systems for cryotherapy, and medical devices for treatment and diagnosis. In the sports sector, the company has earned high recognition both domestically and internationally with its sports care and support brand, ZAMST. Additionally, it is expanding its MEDIAID brand products in areas such as daily care for everyday life and worker care to support laborers' physical well-being.

※Physical Activity Support Industry: An industry (a term coined by the company) that supports people in leading healthier and more comfortable lives by providing products and services aimed at preventing, diagnosing, treating, and recovering from musculoskeletal disorders, as well as maintaining and enhancing motor functions.