Official Website


Patent #6259795

Innovative Theatre & Sports Binoculars

Innovative Theatre & Sports Binoculars



Our Products



The Ultimate Theater & Sports Binocular
Made with Japan’s Craftsmen


Flexcushion® & FlexBarrel®

Feel a good stretch!
The Ultimate Prop, derived from SUMO


Management Team

Naoaki SAKATA, MBA (CEO & Inventor)

Head Coach & GM of Rikkyo Univ. Sumo Team (2017-2023)
Board Member of Eastern Japan College Sumo Federation

  • 2003 MBA, HEC Paris (France)
  • 1995 BA in Sociology, Rikkyo St.Paul's Univirsity (Tokyo, Japan)
  • 1989 Exchange student at Episcopal High School (Alexandria, VA, USA)
  • 2013 Developed & Launched KabukiGlasses
  • 2006 Founded SANTEPLUS & Developed Flexcushion
  • 2003-2006 Worked at Michelin Japan as General Manager
  • 1995-2000 Worked at Panasonic in Japan and in Russia
  • 1971 Born in Tokyo, Japan

Hideo NUMAZAWA, MS (Executive Advisor)

Professor of Rikkyo University, College of Sports & Wellness

  • 1988 MS in Coaching, Juntendo University
  • 1986 BA in Sports Science, Juntendo University
  • 2008 Professor at Rikkyo St.Paul's University
  • 1994 Assistant Professor at Rikkyo St.Paul's University
  • 1992 Started his career at Rikkyo University
  • 1987 4th place in 400m Hurdle at All-Japan Track & Field
  • 1963 Born in Yamagata, Japan

Corporate Profile

Company SANTEPLUS, Inc.
Founded May 15th, 2006
Our Business Developing & manufacturing optical products
Developing & manufacturing sports products
Distribution of above products
Contact 4-1-10 Gokodori, YAYA Building 6th floor
Chuo-ku, Kobe, HYOGO 651-0087 JAPAN
TEL. +81-78-855-7778
Email: info@kabukiglasses.com
President Naoaki SAKATA, MBA
Website www.kabukiglasses.com/en/
Related Company SANTEPLUS, LLC (California, USA)
for sales and distribution in the US
Membership Associate Member of IHRSA in '08
Member of Tokyo Chamber of Commerce since 2006
Support Member of NSCA Japan since 2008
EXPO & Recognition
  • G7 Hiroshima Summit 2023, the official gift from Japan to the spouses of the leaders of G7 and invited nations & organization (Japan)
  • International Ornithological Congress 2018 (Canada)
  • Bird Expo 2018 (Vancouver, Canada)
  • Mitsukoshi for VIPs Luxury 14 times (Japan)
  • Sogo-Seibu for VIPs Luxury 11 times (Japan)
  • Takashimaya for VIPs Luxury 4 times (Japan)
Our Clients now, and records

~ KabukiGlasses®


  • Metropolitan Opera Shop (New York)
  • San Francisco Opera (San Francisco)
  • B&H Photo Video (New York)
  • Adorama (New York)
  • etc.


  • Medas Instruments (Vichy / Paris / Lyon)
  • Opéra national de Paris Palais Garnier (Paris)
  • Opéra Bastille (Paris)
  • Comédie-Française (Paris)
  • Semperoper (Dresden, Germany)
  • etc.


  • Kabuki-za Theatre (Tokyo)
  • Imperial Theatre (Tokyo)
  • New National Theatre Tokyo (Tokyo)
  • Meijiza Theatre (Tokyo)
  • ShinbashiEnbujo Theatre (Tokyo)
  • Ginza Six (Tokyo)
  • Isetan-Mitsukoshi Department Stores (Tokyo)
  • Seibu-Sogo Department Stores (Tokyo / Yokohama)
  • Takashimaya Department Stores (Kyoto / Osaka)
  • Hankyu Department Store (Osaka / Kobe)
  • Japan Airline
  • Ballet Shop Fairy (Tokyo)
  • Japan Grand Sumo Association (Tokyo)
  • etc.

for Inspection Purpose

  • NEXCO East Expressway Company (Japan)
  • The Metropolitan Expressway Tokyo
  • Hanshin Expressway Osaka
  • TEPCO (Tokyo Electric Power Company)
  • KEPCO (Kansai Electric Power Company)
  • Toyota Motors 2 factories (Japan)
  • Kawsaki Heavy Industries Akashi Plant (Japan)
  • Osaka Gas Group
  • Great Seto Bridge (Japan)
  • Akashi Kaikyo Bridge (Japan)
  • etc.

Purchased by Professional Scouts

  • Tokyo Yomiuri Giants (Baseball)
  • Orix Buffaloes (Baseball)
  • Saitama Seibu Lions (Baseball)
  • Tohoku Rakuten Eagles (Baseball)
  • Yokohama DeNA Baystars (Baseball)
  • etc.

Purchased as Gifts

  • G7 Hiroshima Summit 2023
  • Ministry of Foreign Affairs Japan
  • Odds Park (Horse Racing)
  • Hokkaido Nipponham Fighters (Baseball)
  • etc.


  • JTB Sports Marketing Tour (Japan)
  • JTB Royal Road Tour (Japan)
  • Mitsukohi Isetan Nikko Travel (Japan)
  • F&K Cultural Tours & Safari (Kenya)
  • BIC Tours Uganda (Uganda)
  • etc.

~ Flexcushion®


  • PeakPilates (Venice, CA)
  • PerformBetter (Cranston, RI)
  • Medco Sports Medicine (Tonawanda, NY)
  • Athercare Fitness & Rehabilitation (Castro Valley, CA)
  • Mike Boyle's MBSC (Boston, MA)
  • Stacy McCarthy's YogaNamastacy.com (CA)
  • Zoey Trap's Pilates Solutions (USA)
  • Pilates on Fifth (New York City, NY)
  • MiraCosta College (CA)
  • Amazon.com
  • Los Angeles Dodgers (MLB)
  • Boston Red Sox (MLB)
  • Cleveland Guardians (MLB)
  • Minnesta Twins (MLB)
  • Boston Redsox (MLB)
  • Los Angeles Lakers (NBA)
  • Cleveland Cavaliers (NBA)
  • Washington Wizards (NBA)
  • etc.


  • Arsenals (England Premier League)
  • Mad Dogg Athletics Europe B.V. (Netherlands)
  • etc.


  • Japan's Soccer National Team
  • Japan's Men's Volleyball National Team
  • Japan's Table Tennis National Team
  • Tokyo Yomiuri Giants (baseball)
  • Tokyo Yakult Swallows (baseball)
  • Chiba Lotte Marines (baseball)
  • Fukuoka Softbank Hawks (babeball)
  • Yokohama Baystars (Baseball)
  • Saitama Seibu Lions (baseball)
  • Rakuten Golden Eagles (baseball)
  • Hokkaido Nipponham Fighters (baseball)
  • Alvark Tokyo (Japan)
  • Ryukyu Golden Kings (Japan)
  • Chiba Jets (Japan)
  • Nagasaki Velca (Japan)
  • Kyoto Hanneriez (Japan)
  • Shibuya Sun Rockers (Japan)
  • Fukuoka Zepher (Japan)
  • Kumamoto Volters (Japan)
  • Ibaragi Robots (Japan)
  • Vissel Kobe (Soccer, Japan)
  • Kashima Antlers (Soccer, Japan)
  • Kashiwa RaySol (Soccer, Japan)
  • Tokyo Verdi (Soccer, Japan)
  • Kawasaki Frontale (Soccer, Japan)
  • Yokohama F. Marinos (Soccer, Japan)
  • Jubilo Iwata (Soccer, Japan)
  • Kyoto Sanga F.C. (Soccer, Japan)
  • Gamba Osaka (Soccer, Japan)
  • Sagan Tosu (Soccer, Japan)
  • Montedio Yamagata (Soocer, Japan)
  • JEF Chiba United (Soccer, Japan)
  • Shimizu S-Pulse (Soccer, Japan)
  • Fasiano Okayama (Soccer, Japan)
  • Tokushima Voltis (Soccer, Japan)
  • Roasso Kumamoto (Soccer, Japan)
  • Kagoshima United (Soccer, Japan)
  • Oita Trinita (Soccer, Japan)
  • TIPNESS (nationwide health club, Japan)
  • Konami Sports (nationwide health club, Japan)
  • Central Sports (nationwide health club, Japan)
  • Renaissance (nationwide health club, Japan)
  • Tokyu Sports Oasis (nationwide health club, Japan)
  • Anytime Fitness 24 (Japan)
  • Fit 365 (Japan)
  • JoyFit 24 (Japan)
  • FastGym24 (Japan)
  • Hotel New Otani (Tokyo)
  • Hotel Grand Padific Le Daiba (Tokyo)
  • RIHGA Royal Hotel (Tokyo, Osaka, Hiroshima)
  • Pilates Alliance (Tokyo)
  • NPO Japan Stretching Association
  • Runners (marathon magazine & shopping)
  • Tokyu Hands Department Store (Tokyo, Yokohama, Osaka)
  • ISETAN Men's (most prestigous department store, Tokyo)
  • Catalog House (Catalogue shopping)
  • All Nippon Airways Trading (ANA Sky Shopping)
  • Club Business Japan
  • Panasonic Electric Workers Unions
  • Tokai University Judo Team (Japan)
  • Kokushikan University Judo Team (Japan)
  • Yokohama F. Marinos (Soccer, J1)
  • Jubilo Iwata (Soccer, J1)
  • Omiya Ardija (Soccer, J1)
  • Kyoto Purple Sanga (Soccer, J1)
  • Fukushima University Track & Field Team
  • Fujitsu Track & Field Team
  • NEC Green Rockets (Top Leaugue Rugby)
  • Rikkyo University
  • Ritsumeikan University
  • Hokusho University
  • The University of Electro-Communications
  • Komazawa Girls' University
  • etc.

Our Brief History

2006/05 Founded SANTEPLUS, Inc.
2007/07 TIPNESS, one of the largest nationwide fitness clubs in Japan, introduced Flexcushion for the group lesson "Active Stretch" at all their 54 branches
2007/12 Prestigious department store, "ISETAN MEN'S" in Tokyo, started to sell Flexcushion.
2010/03 Founded SANTEPLUS, LLC in San Francisco, USA.
Started distribution of Flexcushion to PerformBetter (RI) and Medco Sports Medicine (NY)
2011/01 Flexcushion selected as "Product of the Year" in Japan's Health & Fitness Industry 2010
2011/03 Contributed $5000 to the Fund for Eastern Japan Tsunami & Earthquake.
2013/02 Several star players of Fukuoka Hawks appeared in newspapers with KabukiGlasses.
2013/03 Launched KabukiGlasses at Mitsukoshi the Main Store in Tokyo, the most prestigious department store in Japan.
2013/04 TV Tokyo's popular program "World Business Satellite" reported the debut of KabukiGlasses.
2013/05 NHK, semi-national TV channel, reported the innovative function of KabukiGlasses.
2013/10 ISETAN MEN'S, the most fashionable department store in Japan, started to sell KabukiGlasses.
2013/10 Meijiza Theatre, one of the oldest and prestigious theatres, introduced KabukiGlasses for its Rental Service.
2013/11 Shinbashi Enbujo Theatre, famous for Kabuki & other performances, introduced KabukiGlasses.
2013/12 KabukiGlasses Luxury Version, decorated with 24K gold leaf, Makie, and Urushi, launched at Mitsukoshi Department Store.
2014/01 Tokyo Yomiuri Giants coach Mr. Okazaki appeared in Sports Newspaper with KabukiGlasses. He was observing the rookies at the Giants' field.
2014/01 NHK Educational Channel, reported on the depth of KabukiGlasses, and their specialized use in theatres. Tokyo Giants players started to use Flexcushion
2014/05 Japan Airlines World Shopping Catalog issued by JALUX sells KabukiGlasses.
2014/08 Exhibited at IOCongress 2014 in Tokyo
2014/10 Exported to Italy. Available at Mitsukoshi Rome.
2015/01 Japan Airline Shopping magazine carries KabukiGlasses.
2015/04 Met Opera Shop (New York) started selling KabukiGlasses.
2015/05 B&H Photo Video (New York) started selling KabukiGlasses.
2015/10 New National Theatre Tokyo started KabukiGlasses Rental.
2016/03 Japan’s Ministry of Foreign Affairs use KabukiGlasses as diplomatic gifts.
2016/04 Takarazuka Revues Store stared selling KabukiGlasses.
2016/11 Semperoper in Dresden, Germany, started KabukiGlasses Rental.
2016/12 Imperial Theatre in Tokyo started KabukiGlasses Rental.
2016/12 TOYOTA’s factories in Japan, introduced KabukiGlasses.
2016/12 DAS OPERNGLAS, a famous German opera magazine, featured KabukiGlasses and the inventor.
2017/01 Japan Airlines catalogue carries KabukiGlasses again.
2017/01 KabukiGlasses exported to France. L’Opera de Paris at Garniers and Commedie Francaise.
2017/01 Yatsugatake Highland Lodge, luxury mansion area, started selling KabukiGlasses.
2017/03 Saitama Seibu Lions, a professional baseball team, introduced KabukiGlasses to their all scouting staffs.
2017/12 Patent #6259765 confirmed.
2018/08 Exhibited at the Bird Expo and IOCongress 2018 in Vancouver, Canada. Margaret Atwood, a famous author, visited KabukiGlasses booth.
2019/01 Sumo’s Grand Stadium in Tokyo started KabukiGlasses Rental.
2019/01 Demonstrated at MLB Scout Convention.
2019/02 Tokyo Electric, Kansai Electric, introduced KabukiGlasses for inspection of their facilities.
2019/09 Met Opera logo, special edition available at Met Opera Shop in New York.
2019/09 Kabuki-za Theatre started selling KabukiGlasses.
2021/07 Rakuten Golden Eagles, a professional baseball team, introduced KabukiGlasses for their scouts.
2021/09 Yodobashi Camera Shop in Akibabara started selling KabukiGlasses.
2022/10 NEXCO East Japan Group introduced KabukiGlasses for inspection.
2023/1 Seto Ohashi Bridge introduced KabukiGlasses for inspection.
2023/3 The Metropolitan Expressway introduced KabukiGlasses for inspection.
2023/4 A drone specialty magazine features KabukiGlasses.
2023/5 At the G7 Hiroshima Summit, KabukiGlasses were given as gifts to the spouses of the participating country leaders.
2023/6 On FM radio J-WAVE, John Kabira and the product developer, Sakata, have a discussion.
2023/7 Exports to a French binocular specialty store begin. Following the export to the Paris Opera.
2023/9 Nationwide FMs such as Tokyo FM and FM Osaka feature discussions between Ikebana artist Ikenobo Senso and the product developer, Sakata.
2024/1 Orix Buffaloes, all scouts of the professional baseball team introduced KabukiGlasses.
The inspection unit of the Hanshin Expressway introduced KabukiGlasses for inspection.
2024/3 Tokyo Yomiuri Giants, all scouts of the professional baseball team introduced KabukiGlasses.