Olympus Corp. engages in the manufacture and sale of precision machineries and instruments. It operates through the following segments: Medical, Scientific Solutions, Imaging, and Others. The Medical segment covers digestive, surgical, and ultrasonic endoscopy as well as endoscopic treatment tools. The Scientific Solutions segment manufactures and sells biological and industrial microscopes, industrial endoscopes, and non-destructive testing equipment. The Imaging segment deals with digital cameras and recording devices. The Others segment includes biomaterial manufacturing and sales business. The company was founded by Takeshi Yamashita on October 12, 1919 and is headquartered in Tokyo, Japan.

FUJIFILM Corp. engages in the provision of imaging and information solutions. Its offers photography equipment, supplies and services, optical devices, healthcare, high-performance materials, graphic systems, recording media, and industrial products. The company was founded on October 2, 2006 and is headquartered in Tokyo, Japan.

HOYA CORPORATION is engaged in the manufacture and sale of electronics-related products, imaging products, healthcare products and medical products. The Company operates in three business segments The Information and Communication business segment has two divisions. The Electronics division offers photomasks and mask blanks for semiconductors, liquid crystal displays masks and hard drive (HDD) for glass disk use. The Image division provides optical lens, digital camera modules and optical devices, among others. The Life Care segment has two divisions. The Healthcare division offers ophthalmic lenses and contact lenses. The Medical division provides endoscopes, intraocular lenses and artificial bones. The Others segment is involved in the building of information systems. On October 1, 2011, the Company established a wholly owned subsidiary to takeover the manufacture and sale of imaging system from HOYA, and sold all shares of the newly established subsidiary to Ricoh Company, Ltd.

Since the company’s founding in 1919, Olympus has been renowned as a precision technology leader, creating innovative opto-digital solutions in healthcare, life science and consumer electronics products. In the healthcare arena, Olympus supports the work of medical professionals by providing advanced, minimally invasive therapeutic and diagnostic technologies to improve the quality of patient care around the globe.

Pentax (ペンタックス Pentakkusu) is a brand name used primarily by Japanese multinational imaging and electronics company Ricoh for cameras, sport optics (including binoculars and rifle scopes), and CCTV optics. The brand is also used by Hoya Corporation for medical products & services, TI Asahi for surveying instruments, and Seiko Optical Products for certain optical lenses.

Fujinon, Inc., part of FUJIFILM Holdings Corp., is a company headquartered in the United States that manufactures and distributes optics and lens assemblies for the broadcast, digital cinema and industrial markets.

Hitachi Healthcare Manufacturing Ltd. manufactures medical instruments, analyzers, and medical information systems. The company was founded on May 9, 1949 and is headquartered in Kashiwa, Japan.

Sea Chief Supply Co. Ltd. is a Taiwanese private company located in Kaohsiung City. The firm manufactures hardware products.

Produces ultrasonic technology

Aver Technologies provides geotechnical design and consulting, geotechnical foundation testing, geotechnical inspections and surveys, geotechnical instrumentation, instrumentation, research, software development, and consultancy services.

ZEON Corp. engages in the production and sale of synthetic rubbers and specialty plastics. It operates through the following segments: Elastomer Materials Business, Specialty Materials Business, and Others. The Elastomer Materials Business segment includes synthetic rubbers used in automobile tires and conveyer belts; synthetic lattices used in tires and adhesives; and chemical products such as resins and inks. The Specialty Materials Business segment comprises of synthetic aroma chemicals and other industrial chemicals; information and imaging materials; specialty plastics for optical lenses; and medical products. The Others segment consists of paints, butadiene extraction technology, and reaction injection molding (RIM) formulations and products. The company was founded on April 12, 1950 and is headquartered in Tokyo, Japan.

Namiki Precision Jewel Co. Ltd. is a private company headquartered in Japan, with subsidiaries in CH, that manufactures and wholesales jewel parts, motors and pumps.

MACHIDA Endoscope Co. Ltd. is a Japanese private company located in Abiko-shi. The firm manufactures medical endoscopes.

Mainly manufactures paper, pulp and related products

Digital Endoscopy GmbH, part of HOYA Corp., is a company headquartered in Friedberg, Germany. The firm designs medical imaging systems and provides real time image processing services. On March 30, 2012 PENTAX Lifecare acquired Digital Endoscopy GmbH from Fritz Pauker Ingenieure GmbH.

Nippon Zeon Co., Ltd., part of BASF SE, is a company headquartered in Tokyo, Japan. The firm manufactures speciality liquid resins. It was acquired by Ciba Holding AG on March 01, 1998.

Ad Me Tech., Co., Ltd. engages in the research and development of medical devices that treat tumors by heat. The company manufactures medical devices utilizing high temperature hyperthermia treatment technology. It also provides the magnetic field induction heating technology, which generates heat by applying alternating current on magnetic metal, is applied in the treatment of high-grade cervical dysplasia in human; and micro electric resistance heating technology, which generates heat using electrical resistance in self-heating needle, is applied in veterinary treatment equipment for the treatment of animal tumors. The company was founded on September 4, 2003 and is headquartered in Matsuyama, Japan.

Toshiba Corporation (株式会社東芝 Kabushiki-gaisha Tōshiba, English: /təˈʃiːbə, tɒ-, toʊ-/) is a Japanese multinational conglomerate headquartered in Tokyo, Japan. Its diversified products and services include information technology and communications equipment and systems, electronic components and materials, power systems, industrial and social infrastructure systems, consumer electronics, home appliances, medical equipment, office equipment, as well as lighting and logistics.