Registration in fiscal year 2022

  [ Essential historical materials for science and technology ]

Registration Number	Name (Model, etc.)	Registration Category	Location / Year Manufactured
Number 326	DC Single Arc Welding Machine (PD-A) - One of the earliest domestically produced motor generator direct current arc welding machine - PDF file download	Category 1	Ibaraki-shi, Osaka 1941
Number 327	Inverter controlled GMAW DC Power Source - Support for high-grade thin plate welding - PDF file download	Category 1	Toyonaka-shi, Osaka 1985
Number 328	Fully Digital DC TIG Welding Power Source - Reproduces welding conditions accurately and in detail - PDF file download	Category 1	Toyonaka-shi, Osaka 2000
Number 329	nocria AS28JPZ - Equipped with the world's first automatic filter cleaning function - PDF file download	Category 1	Kawasaki-shi, Kanagawa 2003
Number 330	【Ground freezing apparatus】 (1) Ground freezing machine Unit (No.US110H-3) (2) Freeze Pipes (Cut Model of Freeze Length Restricted Type and Drill - Freeze Type) (3) Hole-mouth Cut-off Device - Achieves stable ground freezing - PDF file download	Category 1	Ichihara-shi, Chiba (1) 1992 (2) In around 2000 (3) In around 2005
Number 331	Frost Heave Test Apparatus under Controlled Freeze Speed (No.4) - Makes quantitative measurements of soils freeze expansion ratio in arbitrary stress field and temperature field - PDF file download	Category 2	Toyonaka-shi, Osaka 1978
Number 332	Related Materials on Visualizations System of in-site Forming Frozen Soil Wall - Achieves full tracking of the ground improvement range - PDF file download	Category 1	Ichihara-shi, Chiba 2000, 2004
Number 333	Electric Cycle DG-EC2 - Prototype of commercialized electric bicycle - PDF file download	Category 1	Kashiwara-shi, Osaka 1980
Number 334	【Electrically power assisted bicycle】 (1) Electric Hybrid Bicycle Yamaha PAS (2) First-generation PAS proto car (3) First-generation PAS technology development prototype vehicle - the world's first electrically power assisted bicycle that commercialized - PDF file download	Category 1	Iwata-shi, Shizuoka (1) 1993 (1993-1994) (2) 1989 (3) 1991
Number 335	No. 4 Automatic Desktop Telephone Set - Supporting communication during the postwar reconstruction period with independent technological development - PDF file download	Category 1	Musashino-shi, Tokyo 1949-1962
Number 336	No. 600 Automatic Desktop Telephone Set - Meet large-scale demand during the high-growth period with a design that supports improved performance and mass production - PDF file download	Category 1	Musashino-shi, Tokyo 1962-1979
Number 337	No. 601 Automatic Desktop Telephone Set - Telephone set for saving resources and for the global market - PDF file download	Category 1	Musashino-shi, Tokyo 1978-1986
Number 338	Japan's first purely domestic jet engine: Ne-20 - Successful flight with Japan's original technology - PDF file download	Category 2	Akishima-shi, Tokyo In around 1945
Number 339	FJR710 / 20 Turbofan Engine and Environmental Resistance Test Photo Collection - Japan's first high bypass ratio turbofan engine - PDF file download	Category 2	Akishima-shi, Tokyo 1973
Number 340	RJ500 Turbofan Engine - International joint development engine led by Japan - PDF file download	Category 2	Akishima-shi, Tokyo 1982
Number 341	3.5inch Micro Floppy Disc - The world's first 3.5-inch Micro Floppy Disk - PDF file download	Category 1	Minato-ku, Tokyo In around 1980
Number 342	English-language word processor Series 35, OA-S3300 - The world's first word processor with a 3.5-inch micro floppy disk drive - PDF file download	Category 1	Minato-ku, Tokyo In around 1980
Number 343	Digital Mavica (MVC-FD5) - Digital camera equipped with a 3.5-inch micro floppy disk - PDF file download	Category 1	Minato-ku, Tokyo In around 1997

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