Company Overview

SEN LIGHTS Corporation was founded in 1965 with the goal of developing and manufacturing lasers, 5 years after Dr Maiman of GE Electric’s Hughes Research Office invented the world’s first laser device. Although a huge invention for the world, after five years the laser market had not matured, and sales were limited to only a few helium neon lasers and 1 argon laser; the laser business was at a standstill.
During the same time the market for electric circuits was increasing and demand for high performance UV light sources for the sterilization of semiconductor wafers grew. Using our experience in laser discharge tubes, we took on the challenge of developing the high-performance UV lights needed by the semiconductor industry; and succeeded in 1973. This is how SEN LIGHTS Corporation came to have UV technologies as our core business.
The next large move in the market for UV products was the introduction of the liquid crystal display industry, which greatly improved the yield rate and elevated the degree of integration. Although liquid crystal was created in the US, Japan was the first nation to successfully create a product from it. As short wavelength UV has proven to be a technology capable of advanced cleaning of glass panels, it was promptly adopted into the liquid crystal display television industry.
Apart from dry cleaning, UV is effective for reformulation due to its ability to increase adhesiveness in plastics and metals. In reformulation technology which uses highly concentrated chemicals, UV is the only source of surface smoothing, therefore it is ideal for the manufacturing process of IT products that are becoming more and more high density integrated. It is also the only way of applying reinforced lubricant to the surface of mass storage devices (HDD), making UV technology a part of the process of all semiconductor board packages.
UV has a 100-year history in the water treatment industry; organic pollutants can be treated by using UV rays in conjunction with oxidants. There are high hopes for this kind of cutting-edge technology - called the advanced oxidation process. We are a company that produces UV light sources in-house, and on as well as manufacturing UV devices we hold a high potential and a commitment to excellence.

SEN LIGHTS Corporation
Kiyoshi Kikuchi


2000 Ozone Processing / UV (Surface Processing Technology Handbook - from adhesives and coating to electronic materials) NTS Publications.
2002 Light Ozone Method (Next-gen Adhesives and Adhesive Technology) CMC Publications
2002 Light Ozone Method (Adhesives and Adhesive Technology) CMC Publications
2002 UV + O3(Adhesive Technology) The Adhesion Society of Japan
2003 UV Ozone Method (The Science of Surface Analysis / Reformation) Nikkan Kogyo Shimbun
2004 Measures to Deal with Troubles Incurred with UV surface processing (In Organic and Inorganic Materials) Technical Information Institute Co. Ltd.
2006 UV Surface Processing (Latest Practical Technology and Reformation of Liquid Crystal Polymers) Technical Information Institute Co. Ltd.
2007 UV Ozone Method (Analysis and Evaluation of Technologies to Process the Surface of Glass / Film) Johokiko Co. Ltd.
2008 UV Processing (Latest Technology Behind Film-based Electronics) CMC Publishing
2009 UV Cleaning Technologies (Glass Processing Technology and Practical Finished Glass PRoducts) Johokiko Co. LTd.
2010 Technologies to UV Ozone Process Surfaces Without Damaging Smoothness (Detachment Countermeasures / Adhesion Improvement) Science and Technology Co. Ltd.
2011 Short Wavelength UV Lighting (Guide to Adhesive / Dismantling Technologies - Resources / Environment / Energy) NCT Co. Ltd.
2012 Merits of UV Ozone Surface Processing and Practical Application in the Touch Panel Field (Forefront Process in Manufacturing of Touch Panels ~ Pasting, Printing, Film Formation, Surface Processing, Glass / Films, Transparent Conductor Films, Sensors ~) Johokiko Co. Ltd.
2012 Know How on Surface Reformulation and Yield Rate Improvement Using UV Ozone (Film Manufacturing - Technologies for Measures to Deal with Troubles in Film ~ Yield Improvements Indicators Guide) Science and Technology Co. Ltd.
2012 Using Short Wavelength UV Lighting for Cleaning / Reformulation Processing and Influences on Adhesion Durability (Know How and Technologies for the Improvement and Evaluation of Adhesion, Measures Against Deterioration / Improving Use Lifetime / Improving Reliability) Johokiko Co. Ltd.
2014 UV Ozone Used as a Method for Achieving High Performance in Surface Reformulation Technologies and its Practical Applications (Everything About Converting) Processing Technology Assoc. Co. Ltd.
2017 New Surface Processing Technologies Expanding the Market, UV Hardening to Come (150th Radtech Research Conference)