Site Report

The Hachioji Plant manufactures semiconductor manufacturing equipment. It mainly handles “back-end processing” equipment, which are used in the latter half of the semiconductor manufacturing process, and manufacture conventional wafer manufacturing field equipment, test field equipment, CMP (Chemical Mechanical Polishing) devices, and edge grinders.

The Hanno Plant manufactures semiconductor manufacturing equipment. It mainly manufactures probing machines, which are the Company’s core products, and have received high praise from our customers for these machines.

The Tsuchiura Plant manufactures precision measuring instruments. It provides “high-precision measuring instruments” used in measuring rooms and machining tooling lines in various industries around the world, including the automotive, heavy duty equipment, and aircraft industries, for which we have received high praise from our customers. The plant also manufactures charge/ discharge testing systems, helping to support our new business.

The Furudono Plant manufactures charge/discharge testing systems and battery jigs, and provides consigned battery evaluation services. In 2023, the operations of our Group company Accretech Powertro System were integrated into our Precision Measuring Instruments Division.

The construction of the “New Nagoya Plant,” which had been conducted by Tosei Engineering Corp., a Tokyo Seimitsu subsidiary, was completed, and a completion ceremony was held in August 2025.The plant manufactures dedicated measuring instruments used to design and manufacture products according to customer specifications. It also has the “Chubu Metrology Center” as a place for visitors to better understand precision measurement technology.Given the growing demand for semiconductors, the plant is mainly intended to produce hybrid bonding grinders, as well as other products including Si back grinders.