MicroJet Technology Co., Ltd. (研能科技股份有限公司; commonly "MicroJet") is a privately held Taiwanese manufacturer founded August 10, 1996 and headquartered at 1F, No. 28, Yanfa 2nd Rd., Hsinchu Science Park, Hsinchu City, Taiwan. It is a company limited by shares, not publicly traded; Taiwan registry data lists paid-in capital of roughly NT$617 million (authorized NT$1.5 billion). Its own site and D&B-certified profile report 500+ employees (job-board listings cite figures around 450–680), and it states working capital of about US$21 million. No parent company is disclosed in the sources reviewed.
Products / operations. MicroJet is an operating manufacturer built on three stated core technologies: inkjet printing, piezoelectric micro fluidics, and additive-manufacturing inkjet 3D printing. Product lines include thermal-bubble inkjet printheads and ink cartridges, inkjet print engines, printers and multifunction devices, piezoelectric micropumps, atomizers and micro-coolers marketed under the CurieJet brand, full-color/ceramic 3D printers under the Cometrue brand, plus PM2.5 sensors and blood-pressure measurement devices. It operates a Hsinchu Science Park plant (front-end IC/nozzle processes) and a Guanyin, Taoyuan plant (assembly, packaging, R&D), and does own-brand as well as OEM/ODM work. The company claims more than 2,000 granted and pending patents worldwide and ranks among Taiwan's top-100 patent filers.
Patent-litigation posture. The tracked data show 0 cases as plaintiff and 1 as defendant, entirely at the U.S. International Trade Commission — the profile of an operating company defending imported-product allegations, not an NPE asserting an acquired portfolio. No Eastern District of Texas activity appears.
Notable cases. The tracked matter, Hewlett-Packard Company v. Microjet Technology Co., Ltd. et al. (filed December 22, 2000; Inv. No. 337-TA-446), alleged Section 337 infringement of six HP inkjet-cartridge patents; the Commission found a violation and issued a limited exclusion order against MicroJet plus cease-and-desist orders against other respondents (May 2002). External reporting also places MicroJet as a respondent in HP's later ITC action Certain Inkjet Cartridges with Printheads (337-TA-723), which ended in a general exclusion order in October 2011.