Notice of Corporate Name Change - 

Adamant Namiki Precision Jewel Co., Ltd. will change its name on Jan. 1, 2023.

A special website is available.

History

Since our foundation, we have considered our company to be a family.
As a family, every staff member continues to pursue creativity, productivity, and made-to-order technology for our customers,
and promote traditional Japanese craftsmanship that will contribute to society.

*Video, which covers the period from founding up to about the year 2000.

History

1930

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Improve Lifestyle thru
Availability of Electricity

Hard, wear resistant Sapphire Bearings stabilized wattmeter reading thru accuracy.

1939
Namiki Seisakusho founded in Kamiyacho, Kita-ku, Tokyo. Started production of synthetic sapphire jewel bearings for electrical measuring instruments.

1940

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From Clocks to Wrist Watches

Accurate time keeping became possible with Jewel Bearings for watches.

1940
Company moves to larger production facility at Shinden Adachi-ku, Tokyo.During early 1940's the factory is placed under government control, and used primarily to manufacture jewel bearings for aviation instruments and marine radio equipment.
1946
Namiki resumed manufacturing jewel bearings for electrical measuring instruments.
1949
Started production of watch jewel bearings and sapphire phonograph stylus.

1950

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Music Scene Shifted to Our Home

Namiki produced low-cost, long life Phonographic Stylus and had a record sales worldwide.

1953
Namiki Seisakusho is renamed Namiki Precision Jewel Co., Ltd.
1957
Adamant Shoji Co., Ltd. is founded; watch jewel division split up and partly transferred to Adamant Shoji Co. Ltd.

The origin of the company nameAt the time of our company's founding, our main product was watch jewels that were made of a hard material. As such, the company was named after the word "adamant", meaning "extremely hard". The word is derived from "adamas", which is the root of the Greek word for "diamond". Processing such materials is the key to our core technology.

Started sales of jewel bearings for watches.
1959
The company changed name to Adamant Kogyo Co., Ltd.
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1960

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From Valuable to Daily Accessory

Development of unbreakable Crystal Glass for watch changed the use of watch from valuable to daily accessory.

1962
Developed technology for bonding diamond tips onto metal; Started production of bonded diamond stylus components.
1966
Developed crystal glass for watches.
1967
Opened Akita Yuzawa Factory.
1968
Started production of magnetic tape headsfor tape recorders.
1969
Started production of super-hard metal watch cases.
Started manufacture of medical equipment parts.
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1970

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From Heavy Cassette Player to Portable Player

The world's smallest Micro Coreless Motor (10mm in diameter) contributed in the invention of portable cassette player.

1970
Started production of synthetic sapphire watch crystal.
1971
Developed and introducted diamond stylus for four-channel records jointly with JVC.
Started manufacture of telecommunication, electronic and applied equipment parts.
1973
Developed the world's smallest coreless motor with diameter of 10mm.
1974
Opened New York sales office.
1975
Started production of Box glass for watches.
1976
Manufacture of liquid crystal display panels and audio component parts started.
1977
Developed tempered glass for watches panes; production.
1978
Manufacture of optical equipment parts started.
1979
Manufacture of ruby capillaries started.
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1980

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From "Sound" to "Vibration" mode

the world's first Vibration Motor contributed in adding new function to the mobile phones.

From Paper to Cyberspace

Micron level processing of Optical Communication Parts supported reliable high-speed network and broadband internet.

1980
Started production of floppy heads.
Manufacture of ferrule started.
1981
Manufacture of sleeve started.
1982
Opened Aomori Kuroishi Factory.
Started production of Microridge stylus for 4CR.
1983
Manufacture of high performance temperature/humidity sensors and ruby surgical knives started.
1984
Started production of Infusion pumps in OEM basis.
1985
Started production of vibration motors for pager.
Started manufacture of semi-conductor parts.
1987
Started production of hybrid IC's.
Developed garnet crystal.
1989
Akita-Adamant Co., Ltd., a subsidiary of Adamant Kogyo Co., Ltd., was established at Yuzawa City, Akita.
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1990

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From Light Bulb to LED

Growth of single Crystal Sapphire to micron-level polishing technology, made possible to produce environmental friendly LED.

1991
Established manufacturing technology of the synthetic single crystal sapphire.
1992
Started production of optical isolators.
Manufacture of touch panels started.
1993
Opened Namiki Precision (Thailand) Co.,Ltd. (production division) in Chiang Mai, Thailand.
Akita Adamant Co., Ltd. was moved to Yokote City, Akita.
1995
Production of the ceramic watch parts.
1996
Started production of lensed fibers for optical communication.
1997
NNamiki Precision Singapore Pte. Ltd. established. (business division)
1998
Adamant America, Inc., was established in United States. (business division)
1999
Opened Namiki Precision of California,Inc.(business and R&D division) in California USA.
Started production of vibration speaker.
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2000

From time-consumed operation to short / accurate operation

With the world's smallest Micro Coreless Motor (0.9mm in diameter), catheter and endoscopic examination become more accurate.

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2000
Started production of sapphire wafers.
2003
Started production of MEMS products.
2004
Developed the world's smallest metallic glass micro-geared motor with diameter of 1.5mm.
2005
Developed production technology of step wafers with the height of each step being 0.22 nanometers.
2007
Developed the world's highest ratio diamond needles.
Established precise micro-machining technology with femtosecond laser.
2008
Established the gallium nitride, GaN, polishing technology.
2009
Developed the world's smallest metallic glass micro-geared motor with diameter of 0.9mm.
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2010

2014
Developed the world's first plasma fusion chemical mechanical polishing (CMP) processing technology with Kyusyu University and Osaka University.
(Grant-in-Aid for Scientific Research (S)Number 24226005)
Developed the 0.6mm diameter micro motor.
2015
Developed hetero-epitaxial diamond growth technology with micro-needle growth method.
2018
Namiki Precision Jewel Co., Ltd. and Adamant Co., Ltd. are merged and changed name to Adamant Namiki Precision Jewel Co., Ltd.
2019
Started production of Optical Inner Wall Metrology System.
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2020

2021
Developed 2-inch hetero-epitaxial diamond growth technology with step-flow growth method.