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Public qualifications

(As of May 2021)

Classification Qualification name Number of people
Construction industry qualifications Second Class Architect 4
First Class Plumbing Work Operation and Management Engineer 105
Second Class Plumbing Work Operation and Management Engineer 85
Second Class Civil Engineering Work Operation and Management Engineer 4
First Class Electrical Work Operation and Management Engineer 31
Second Class Electrical Work Operation and Management Engineer 34
Training Course for Managing Engineer 60
Certificate of Qualification for Managing Engineer (Plumbing Business) 66
Certificate of Qualification for Managing Engineer (Machinery, Equipment, and Facility Business) 1
Certificate of Qualification for Managing Engineer (Electrical Contracting Business) 16
Electrical qualifications 1st Class Qualified Certified Electrician 30
2nd Class Qualified Certified Electrician 101
3rd Class Electric Works Specialist 13
Fire fighting qualifications Class A Hazardous Materials Engineer's License 18
Class B Hazardous Materials Engineer's License: Group 1 45
Class B Hazardous Materials Engineer's License: Group 2 42
Class B Hazardous Materials Engineer's License: Group 3 73
Class B Hazardous Materials Engineer's License: Group 4 188
Class B Hazardous Materials Engineer's License: Group 5 46
Class B Hazardous Materials Engineer's License: Group 6 52
Class C Hazardous Materials Engineer's License 38
High-pressure gas-related qualifications High-pressure Gas Production Safety Management (Class-A Mechanical) 27
High-pressure Gas Production Safety Management (Class-A Chemical) 15
High-pressure Gas Production Safety Management (Class-B Mechanical) 225
High-pressure Gas Production Safety Management (Class-B Chemical) 60
High-Pressure Gas Production Safety Management (Class-C Chemical: Special subjects) 170
High-pressure Gas Production Safety Management (Class-C Chemical: Liquefied Petroleum Gas) 12
High-pressure Gas Production Safety Management (Class-C Chemical) 15
High-pressure Gas Class-1 Sales Safety Chief 55
High-pressure Gas Class-2 Sales Safety Chief 19
High-pressure Gas Class-1 Refrigeration Safety Manager 2
High-pressure Gas Class-2 Refrigeration Safety Manager 4
High-pressure Gas Class-3 Refrigeration Safety Manager 9
Liquefied Petroleum Gas Installation Engineer 5
Occupational safety and health related qualifications Handlers of General Poisonous and Deleterious Substances 47
Class-1 Boiler Expert's License 6
Class-2 Boiler Expert's License 13
Operations Chief of Gas Welding License 18
Skill Training Course for Operation Chief of Oxygen Deficient/Hydrogen Sulfide Danger 170
Skill Training Course for Operations Chief of Hazardous Work of Oxygen Deficiency 15
Class-1 Skill Training Course for Operations Chief of Hazardous Work of Oxygen Deficiency 5
Class-2 Skill Training Course for Operations Chief of Hazardous Work of Oxygen Deficiency 112
Class-1 Health Officer's License 70
Specific Dust Pollution Control Manager 1
Welding/Inspection technology related qualifications Non-Destructive Testing Engineer Solvent-Removable Penetrant Testing Level 1 9
Non-Destructive Testing Engineer Solvent-Removable Penetrant Testing Level 2 29
Non-Destructive Testing Engineer Dye Penetrant Testing Level 2 12
Non-Destructive Testing Engineer Ultrasonic Testing Level 1 65
Non-Destructive Testing Engineer Ultrasonic Testing Level 2 1
Non-Destructive Testing Engineer Magnetic Particles Testing Level 1 1
Non-Destructive Testing Engineer Water-Washable Penetrant Testing Level 1 1
Non-Destructive Testing Engineer Radiographic Testing Level 1 3
Non-Destructive Testing Engineer Radiographic Testing Level 2 1
JIS Certification of Welders (TIG Welding) 1
JIS Certification of Welders (Stainless Steel Welding) 11
IIW International Welding Technologist (IWT) 1
JIS Certification of Welders (Silver Alloy Brazing) 6
LWS Certification of Welders (Aluminum Welding) 1
LWS Certification of 2nd Class Welding Coordination Personnel (Aluminum Alloy Structure) 1
Information processing related qualifications Applied Information Technology Engineer 1
Second Class Information Processing Engineer 3
Information Technology Passport 3
IT Passport 7
Number of qualification holders 2,284

Internally Certified Qualifications

(As of May 2021)

ClassificationQualification nameNumber of people
EquipmentManufacturing Manager (High Pressure Gas Certified Products)2
JIS Welder (High Pressure Gas Certified Products)2
Inspection Manager (High Pressure Gas Certified Products)1
Design Manager (High Pressure Gas Certified Products)2
Inspector of High Pressure Gas Certified Products8
Welding Construction Manager (High Pressure Gas Certified Products)4
Maintenance Staff Type A Class 117
Maintenance Staff Type A Class 262
Maintenance Staff Type B-I Class 117
Maintenance Staff Type B-I Class 276
Maintenance Staff Type B-II Class 125
Maintenance Staff Type B-II Class 277
Maintenance Staff Type C Class 132
Maintenance Staff Type C Class 242
First Class Inspector102
Second Class Inspector Type A5
Second Class Inspector Type B26
Second Class Inspector Type C12
First Class CAD Drafter2
Second Class CAD Drafter8
Equipment Designer Class A5
Equipment Designer Class B10
Equipment Designer Class C10
Equipment Designer Class D6
Equipment Designer Class E45
Calibration Staff Class A5
Calibration Staff Class B14
Commissioning Staff Type A Class 112
Commissioning Staff Type A Class 211
Commissioning Staff Type B-I Class 125
Commissioning Staff Type B-I Class 217
Commissioning Staff Type B-II Class 117
Commissioning Staff Type B-II Class 217
Commissioning Staff Type C Class 131
Commissioning Staff Type C Class 222
First Class Analyst5
Second Class Analyst7
Equipment WorkGeneral Gas Equipment Inspector (A)19
General Gas Equipment Inspector (B0)187
General Gas Equipment Inspector (B1)92
General Gas Equipment Inspector (B2)83
General Gas Equipment Inspector (B3)87
General Gas Equipment Inspector (B4)43
General Gas Equipment Inspector (B5)33
General Gas Equipment Inspector (B6)39
Chief Engineer (Plumbing Business)122
Chief Engineer (Machinery and Equipment Installation Business)92
First Class Piping Construction Manager29
Second Class Piping Construction Manager97
Third Class Piping Construction Manager67
First Class Piping Construction Designer122
Second Class Piping Construction Designer50
Semiconductor Gas Equipment Inspector (A)40
Semiconductor Gas Equipment Inspector (B)157
High Pressure Gas Safety Act Documentation Staff141
Welding Construction Manager90
Welder289
Welding Inspector63
Electrical WorkChief Engineer (Electrical Work)34
Electric Instrumentation Inspector66
First Class Electric Instrumentation Designer39
Second Class Electric Instrumentation Designer24
First Class Electrical Work Manager9
Second Class Electrical Work Manager29
Third Class Electrical Work Manager31
Quality/EnvironmentFirst Class Environmental Auditor (2004 version)23
First Class Environmental Auditor (2015 version)7
Second Class Environmental Auditor (2004 version)30
First Class Quality Auditor (2008 version)48
First Class Quality Auditor (2015 version)9
Second Class Quality Auditor (2008 version)35
First Class Occupational Safety and Health Auditor (2007 version)27
Second Class Occupational Safety and Health Auditor (2007 version)11
SafetyCompletion Inspector56
General Completion Inspector27
Safety Inspector56
General Safety Inspector27
Number of qualification holders3,311

* The number of internally certified qualification holders includes that of partner companies.