| 1986 | - Apr. MF Business Team established within Kitazawa Valve Co., Ltd. and a clean room installed at Nagasaka Plant; research of hollow fiber membrane manufacturing technology begins.
|
|---|
| 1988 | - Apr. Developed high-precision hollow fiber membranes and began marketing "gas line filters" for semiconductors.
|
|---|
| 1989 | - Apr. Launched sales of "OASICS" water purifiers.
|
|---|
| 1990 | - May Began selling filters for dental applications.
|
|---|
| 1992 | - Apr. Begins sales of "air guns" and enters the general industrial field.
- Jul. Company name changed to KITZ Corporation.
|
|---|
| 1994 | - Apr. Launched sales of "Water Gun"
|
|---|
| 1997 | - Oct. Succeeded in commercialization of the world's first all-olefin hollow fiber membrane filter "Polyfix"
|
|---|
| 2000 | - Apr. Reorganized from MF Business Team to "MF Business Department"
- Oct. Moved manufacturing division to Suwa Plant for production expansion
|
|---|
| 2001 | - Mar. Suwa Plant acquires ISO 14001 certification.
|
|---|
| 2003 | - Oct. ISO9001 certification acquired
|
|---|
| 2004 | - Apr. KITZ Microfilter Inc. established as a spin-off from KITZ Corporation.
|
|---|
| 2005 | - Nov. Home-use water purifier "Purifree" goes on sale.
|
|---|
| 2007 | - May Head office moved to Suwa, Tokyo branch opened
|
|---|
| 2008 | - Dec. Started sales of Polyfix 5nm all-polyethylene specification
|
|---|
| 2009 | - Jul. Started sales of I-type under-sink water purifier "OASICS PREMIUM"
|
|---|
| 2015 | - Jan. Tokyo Branch moves to Nihonbashi.
|
|---|
| 2016 | - Apr. Oasix Sales Department Kyushu Sales Office established
|
|---|
| 2019 | - Sep. Chino Plant completed (in KITZ Chino Techno Park)
|
|---|
| 2020 | - Oct. Head office moved to Chino City (Chino Plant)
|
|---|
