加藤大典がこれまでに取得した、レジャーダイビング、テクニカルダイビング、リブリーザー、ケイブダイビング、パブリックセーフティダイビング、応急手当に関する資格と指導者資格の一覧です。
現在は、SDIコースディレクタートレーナー、TDIインストラクタートレーナーとして、ダイバーからインストラクター、インストラクタートレーナーまで、幅広い育成に携わっています。
安全で質の高い指導を提供するため、資格取得後も国内外のトレーニングやアップデートに継続して参加し、最新の技術、知識、指導方法を学び続けています。

1990-06　CMAS Open Water Diver｜Instructor: Kozo Masuda
1991-06　CMAS Advanced Diver｜Instructor: Kozo Masuda
1992-06　CMAS Rescue Diver｜Instructor: Kozo Masuda
1992-08　CMAS Divemaster｜Instructor: Kozo Masuda
1993-12　CMAS Professional Instructor｜Trainer: Kiyotaka Kawashima／Evaluator: Norio Sato
1994-05　潜水士免許取得
1995-02　文部省認定スポーツ指導員資格取得
1999-11-30　TDI Nitrox Instructor｜Instructor Trainer: Norio Sato
2000-02　DAN Oxygen Instructor Trainer
2003-04　CMAS Master Instructor｜Evaluator: Norio Sato
2005-03-11　TDI Advanced Nitrox Instructor｜Instructor Trainers: Kenji Yasuhara／Yoshiya Takano
2005-03-11　TDI Decompression Procedures Instructor｜Instructor Trainers: Kenji Yasuhara／Yoshiya Takano
2005-03-11　TDI Extended Range Instructor｜Instructor Trainers: Kenji Yasuhara／Yoshiya Takano
2005-04　CMAS Course Director｜Evaluator: Norio Sato
2006-01-10　TDI Full Cave Diver｜Instructor: Larry Green
2006-01-10　NSS-CDS Full Cave Diver｜Instructor: Larry Green
2008-02-26　TDI Inspiration Air Diluent Decompression Diver｜Instructor: Koichi Tahara
2008-03-01　TDI Advanced Trimix Diver｜Instructor: Koichi Tahara
2011-04　社団法人レジャー・スポーツダイビング産業協会 優良ガイドダイバー
2011-09-08　TDI Cavern Instructor｜Instructor Trainers: Kenji Yasuhara／Yoshiya Takano
2011-09-08　TDI Intro to Cave Instructor｜Instructor Trainers: Kenji Yasuhara／Yoshiya Takano
2011-10-31　SDI Open Water Scuba Diver Instructor
2011-10-31　SDI Solo Diving Instructor
2011-10-31　SDI Computer Nitrox Instructor
2011-10-31　TDI Intro to Tech Instructor
2011-10-31　SDI Course Director
2011-10-31　SDI Open Water Scuba Instructor Trainer
2011-10-31　ERD Drysuit Operations Instructor Trainer
2011-10-31　SDI Solo Diving Instructor Trainer
2011-10-31　TDI Nitrox Instructor Trainer
2011-10-31　TDI Advanced Nitrox Instructor Trainer
2011-10-31　TDI Intro to Tech Instructor Trainer
2011-10-31　TDI Cavern Evaluator
2011-11-15　TDI Trimix Instructor｜Instructor Trainer: Koichi Tahara
2012-01-13　TDI Inspiration Air Diluent Instructor｜Instructor Trainer: Koichi Tahara
2012-01-13　TDI Evolution Air Diluent Instructor｜Instructor Trainer: Koichi Tahara
2012-01-13　TDI Evolution Air Diluent Decompression Instructor｜Instructor Trainer: Koichi Tahara
2012-01-19　TDI Evolution Advanced Mixed Gas Diver｜Instructor: Koichi Tahara
2012-01-25　TDI Advanced Wreck Diver｜Instructor: Koichi Tahara
2012-02-10　TDI Cave Sidemount Diver｜Instructor: Hiroshi Sekito
2012-03-07　TDI Advanced Wreck Instructor｜Instructor Trainer: Koichi Tahara
2012-03-11　TDI DPV Cave Diver｜Instructor: Harry Gust
2012-11-09　TDI Advanced Trimix Instructor｜Instructor Trainer: Koichi Tahara
2012-11-21　TDI Cave Sidemount Instructor｜Instructor Trainer: Harry Gust
2012-11-21　TDI Full Cave Instructor｜Instructor Trainer: Harry Gust
2012-11-21　TDI Sidemount Instructor｜Instructor Trainer: Harry Gust
2015-07-28　ERD Tender Technician｜Instructor: Mark Houghton
2015-07-28　ERD I Diver Technician｜Instructor: Mark Houghton
2015-07-28　ERD II Diver Technician｜Instructor: Mark Houghton
2015-07-28　ERD Full Face Mask Diver Technician Level｜Instructor: Mark Houghton
2015-07-28　ERD Dry Suit Diver｜Instructor: Mark Houghton
2015-07-28　ERD Contaminated Water Operations Technician｜Instructor: Mark Houghton
2015-09-16　TDI Explorer Rebreather Instructor｜Instructor Trainer: Mitsuyoshi Tanaka
2016-01-05　TDI SF2 eCCR Air Diluent Diver｜Instructor: Euiook Jung
2016-01-05　TDI SF2 Sidemount eCCR Air Diluent Diver｜Instructor: Euiook Jung
2016-02-14　TDI Sidemount Instructor Trainer
2016-02-15　SDI Advanced Buoyancy Instructor
2016-02-15　SDI Altitude Diver Instructor
2016-02-15　SDI Boat Diving Instructor
2016-02-15　SDI Computer Diver Instructor
2016-02-15　SDI CPR1st Instructor
2016-02-15　SDI CPROX Instructor
2016-02-15　SDI CPROX1st AED Instructor
2016-02-15　SDI Deep Diving Instructor
2016-02-15　SDI Diver Propulsion Vehicle Instructor
2016-02-15　SDI Drift Diving Instructor
2016-02-15　SDI Dry Suit Diving Instructor
2016-02-15　SDI Equipment Specialist Instructor
2016-02-15　SDI Ice Diving Instructor
2016-02-15　SDI Marine Ecosystems Awareness Instructor
2016-02-15　SDI Night/Limited Visibility Diving Instructor
2016-02-15　SDI Research Diving Instructor
2016-02-15　SDI Sidemount Instructor
2016-02-15　SDI Search and Recovery Diving Instructor
2016-02-15　SDI Shore and Beach Diving Instructor
2016-02-15　SDI Underwater Navigation Diving Instructor
2016-02-15　SDI Underwater Photography Instructor
2016-02-15　SDI Underwater Video Instructor
2016-02-15　SDI Wreck Instructor
2016-02-15　TDI Decompression Procedures Instructor Trainer
2016-02-25　TDI Equipment O₂ Service Technician Instructor｜Instructor Trainer: Hiroshi Sekito
2016-02-25　TDI Advanced Gas Blending Instructor｜Instructor Trainer: Hiroshi Sekito
2016-02-25　TDI Nitrox Gas Blending Instructor｜Instructor Trainer: Hiroshi Sekito
2016-03-04　TDI SF2 eCCR Air Diluent Instructor｜Instructor Trainer: Euiook Jung
2016-03-04　TDI SF2 Sidemount eCCR Air Diluent Instructor｜Instructor Trainer: Euiook Jung
2018-09-18　SDI Full Face Mask Instructor
2019-02-20　SDI CPROX1st AED Instructor Trainer
2019-03-12　TDI Advanced Wreck Instructor Trainer
2019-06-23　Cave Survey Diver Instructor｜Instructor: Robbie Schmittner
2019-11-11　First Response Training Adult and Child Emergency Care Instructor
2019-11-11　First Response Training Oxygen Administration Instructor
2019-11-11　First Response Training Bloodborne Pathogens Instructor
2019-12-17　First Response Training Instructor Trainer
2020-02-10　SDI Snorkeling Instructor
2020-04-06　TDI Stage Cave Instructor｜Instructor Trainer: Daniel Gonzalez Cardona
2020-04-09　SDI Logosease（水中会話装置）Specialty Instructor
2020-09-28　SDI Course Director Trainer
2021-03-12　TDI Technical DPV Instructor
2022-04-24　KISS Sidewinder mCCR Air Diluent Diver｜Instructors: Jake Bulman／Alexandra Coffield-Feith
2022-05-14　Cave CCR Diver｜Instructors: Patrick Widmann／Jake Bulman
2022-10-10　KISS Sidewinder mCCR Air Diluent Instructor｜Instructor Trainer: Patrick Widmann
2022-10-10　KISS Sidewinder mCCR Air Diluent Decompression Instructor｜Instructor Trainer: Patrick Widmann
2023-12-26　KISS Sidewinder mCCR Helitrox CCR Diver｜Instructor Trainer: Jake Bulman
2023-12-28　KISS Sidewinder mCCR Mixed Gas CCR Diver｜Instructor Trainer: Jake Bulman
2024-01-08　KISS Sidewinder mCCR Factory Approved Instructor｜Instructor Trainers: Patrick Widmann／Jake Bulman
2024-03-08　SDI Dive Experience Leader
2024-03-08　TDI Trimix 75m Instructor
2024-03-08　TDI Intro to Cave Evaluator
2024-06-05　SDI Elite Scuba Instructor
2024-08-28　TDI Technical Rescue Instructor
2024-10-28　TDI Helitrox Instructor
2025-10-23　TDI Rebreather Full Cave Instructor
2025-11-08　海洋医療初期対応研修 Immediate Care of Marine Medicine（ICMM）
2025-12-09　TDI Underwater Cave Surveying Instructor
2025-12-09　TDI Technical Underwater Cave Surveying Instructor
2026-03-07　SDI Air Fill Station Technician Instructor
2026-08-17　TDI Advanced Sidemount Instructor
2026-09-02　TDI Extended Range IT