Hilltop (Yamamoto Seiko Co., Ltd.)

hilltop technology laboratory logo

Contact Masanori Yamamoto (President)
Address 1-30 Narute Okubo-cho, Uji-shi, Kyoto – 611-0033, Japan
E-Mail [email protected]
TEL +81-774-41-2933
FAX +81-774-41-2926
URL hilltop21.com

hilltop logo
hilltop prototyping development team
jig saw puzzle, jig design


Rapid-Prototype development (24/7), custom cnc machining, short run productions, and quick turnaround products. Precision machining as specialty, device design and assembly, JIG design, software development. Fool’s Lab is a R&D facility within the company that is open to the public.


Precision machinery & medical equipment parts scientific instruments, vacuum equipment, tooling design and manufacturing, told making, surface treatment (various color anodized, electroless nickel, Freon-plated).
Hilltop Tech Lab expended out of Japan and started operations in Irvine, Calif., in 2014. The U.S. operation displayed at Medical Design & Manufacturing. The site in Orange County occupies 7,700 square feet and operates five computer numerical control machines. Three CNCs are five-axis models, and two are three-axis unitsProduct design and development occurs in Japan, and the output is electronically transferred for “five-day prototype machining” in California.

Products / Services

Aluminum Processing for Single-Article, Multiple-Parts and Quick Delivery: innovative own streamlined production system ‘The Hilltop System’ to support highly precise unmanned processing for single pieces and multiple interacting parts. This system is optimized for quick delivery, and also preps the parts for any desired in-house surface treatment.

Image Inspection and Analysis for Custom Parts: each part is inspected for damage and exterior inconsistencies.


Multi-axis Processing Machine: With 4-axis and 5-axis machining centers, equipped to provide the most complex and precise processing for the most complex parts.

Objet Connex 3D Printer: able to support multiple-types of materials, like soft plastics and rubbers, this 3D printer is an ideal solution for your rapid prototyping needs.

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