Status of the current Japan's aerospace industry: Part 1 Commercial aircraft manufacturing

 <15 companies in the production of B787>.

    According to the Boeing 787 Manufacturing Division of the Japan Aircraft Development Corporation, Mitsubishi Heavy Industries, Kawasaki Heavy Industries, and Subaru share 35% of the manufacturing of the structure, while GS Yuasa, Kanto Aircraft Instrument, Jamco, Sumitomo Precision Industry, Tamagawa Seiki, Toray, Nabtesco, Panasonic Avionics, Bridgestone, Shimadzu Corporation, Nabtesco, KYB, and Nikkiso also participate.  Total 15 companies share its production.

    Boeing orders the production of as much as 3 million parts worldwide and works with thousands of suppliers. The Airframer has published a supply chain list, which lists 67 organizations and companies in Japan.

https://www.airframer.com/sector_front.html#dropdowns

<15 companies in the production of  Airbus 380>

　According to Airbus data, 15 companies are involved in the production of the Airbus 380, including Mitsubishi Heavy Industries, Subaru, NIPPI, Jamco, Nippon Steel, Toray, Teijin, Comy, ShinMaywa Industries, MinebeaMitsumi, Nikkiso, Sumitomo Precision , Bridgestone, Yokohama Rubber, and Panasonic Avionics. Number of companies are the same as B787, however, the share is much smaller than that of B787.

   Airbus also has a supply chain of about 9,200 companies around the world, and publishes a list of the names of these companies on its website. In Japan, 61 companies are introduced.

https://www.airbus.com/be-an-airbus-supplier.html#forexisting

To be continued .......