Gas Processing
Origin of technology
Our technology originates from the process of heating through gas burners utilizing a flame.
The definition of "glass" varies depending on its chemical and physical properties based on its composition.
The "flame" also changes depending on the surroundings’ condition.
To control these, highly skilled professionals identify the characteristics of glass and efficiently manipulate the flame to produce various glass products with precise measurements.
This technology is unique to our company, achieved by our thorough knowledge of glass and many years of experience in processing.
Corrugated seal processing
Bonds glasses with different coefficients of expansion.
This is a method of connecting glass with different coefficients of expansion one by one using an intermediate glass.
Heterogenous material bonding
We have the technology capable of incorporating glass with metals, such as tungsten (W), molybdenum (Mo), and Kovar.
Vacuum Forming ProcessCombination of Skill and Technology
We have developed a vacuum forming process that combines vacuum and molding technology.
It is a technique to put a mold in a glass tube and shape it using a vacuum.
Our expertise made it possible to manufacture high-precision glass cells (cuvettes).
Stretching ProcessWe are good at making even the smallest and detailed shapes.
Our technology for accurately stretching glass tubes enables us to stretch not only round tubes, but also square and hexagonal fine tubes.
The smallest microtubes that have been realized so far have an outer diameter of about 50 μm, which is about the same thickness as a human hair.
Using this drawing technology, we manufacture fine glass tubes according to customer requests.
Gas Processing
Our technology originates from the process of heating through gas burners utilizing a flame.
The definition of "glass" varies depending on its chemical and physical properties based on its composition. The "flame" also changes depending on the surroundings’ condition.
To control these, highly skilled professionals identify the characteristics of glass and efficiently manipulate the flame to produce various glass products with precise measurements.
This technology is unique to our company, achieved by our thorough knowledge of glass and many years of experience in processing.
Corrugated seal processing
We incorporate glasses with different expansion coefficients by individually connecting them using an intermediate glass.
Heterogenous material bonding
Joins [Glass] and [Metal].
We have the technology capable of incorporating glass with metals, such as tungsten (W), molybdenum (Mo), and Kovar.
Vacuum Forming ProcessCombination of Skill and Technology
We have developed a vacuum forming process that combines vacuum and molding technology.
It is a technique to put a mold in a glass tube and shape it using a vacuum.
Our expertise made it possible to manufacture high-precision glass cells (cuvettes).
Stretching ProcessWe make even the smallest shapes possible.
Our technology for accurately stretching glass tubes enables us to stretch not only round tubes, but also square and hexagonal fine tubes.
The smallest capillary tubes that we have achieved so far have an outer diameter of about 50 μm, which is about the same thickness as a human hair.
Using this stretching technology, we manufacture fine glass tubes according to our customers’ requests.
Main products
Glass Cell (Cuvette)
Glass Cell (Cuvette)
We have developed a high-precision product using vacuum forming.
Glass parts
Glass parts
We manufacture many glass parts, including glass stem terminals and various glass columns.
Special Light Source
Special Light Source
We use our technology to make special light source for different applications, such as fluorescent lamps and light bulbs.
Research and Development
We are working on research and development to keep up with the glass technology in demand.
Among the examples are stems and Houskeeper seals. Therefore, Onizuka Glass decided to start manufacturing these products with the goal of handing down this technology to future generations.
stem terminal
Stem Terminal
We also bond glass and metal together. Glass and metal have very different coefficients of thermal expansion, so if they are simply joined together, they will soon peel off.
Therefore, in order to perform this bonding perfectly, it is necessary to ascertain the properties of the glass and to carefully treat the metal physically and chemically.
A stem terminal is a component that supplies power to the interior of a vacuum or gas-filled glass container. It is used for vacuum tubes such as X-ray tubes and special lamps.
housekeeper seal
Houskeeper seal
We also offer Houskeeper seals to ensure the best glass-to-metal bonding.
Using this method, various metals (such as stainless steel) can be directly bonded to glass.
This product is used for vacuum piping in vacuum systems and sample containers for analytical instruments.