| 1893 | Sukejiro Kaihara established a private indigo kasuri weaving (38 cm) manufacturing business under the trademark  in Tsune, Shinichi-cho, Ashina-gun (present-day Fukuyama City), Hiroshima Prefecture |
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| 1951 | Established Kaihara Textile Mills Ltd. with a capital investment of 1.8 million yen and 34 looms Chairperson: Sukejiro Kaihara President: Satoru Kaihara Manager: Sadaharu Kaihara |
| 1954 | Independently developed a submerged wringing automatic indigo dye machine (patent approved) |
| 1956 | Developed the world’s first 36-inch (90 cm) wide broad kasuri fabric using an electric loom (Trademark: Nichibo Cony) |
| 1961 | Developed the world’s first 48-inch (122 cm) wide kasuri sarong material, and exported traditional dress sarongs to Middle East Aden (Sarong: Long-skirt type breechcloth) |
| 1962 | Started production of narrow wool kasuri fabric made of wool materials for the first time in the Bingo area (Trademark: Nichibo Wool Kasuri) Capital increase by Dainippon Spinners Co., Ltd. with a 20 million yen capital participation Established Kaiharasangyo Co., Ltd. (Capital: 1 million yen) |
| 1965 | Established the Hirohaba Kasuri Cooperative Association (Capital: 1 million yen) |
| 1968 | L/C stop by political uncertainty in Middle East Aden and British Pound devaluations, led to overstocked inventory of kasuri sarong (equivalent to the volume of about a one-year stock) |
| 1969 | L/C stopped again and kasuri sarong production discontinued |
| 1970 | Inauguration of Satoru Kaihara as CEO and Sadaharu Kaihara as President First delivery of cheese-dyed indigo denim Independently developed a consecutive indigo dyeing machine (Rope Dyeing Machine No. 1), and delivered rope-dyed denim for the first time to the Japanese market |
| 1973 | Established Joge Mills |
| 1974 | Established Deny Co., Ltd. (Capital: 50 million yen) (A fifty-fifty joint venture by Unitika, Ltd. and Kaihara Textile Mills Ltd.) Full operation started using 68 looms of Toyota Gu8 weaving machines |
| 1975 | Concluded a Pollution Prevention Agreement with the Shinichi-cho Completed a drainage disposal system utilizing activated sludge processing |
| 1976 | Completed a drainage disposal system utilizing activated sludge processing Achieved 100,000 tan (bolts: roughly 36 cm ´ 11.5 m) of monthly production by rope dyeing machines, accounting for 75% of domestic production |
| 1977 | Rope Dyeing Machine No. 8 completed Recorded an all-time high of 120,000 tan (bolts) of monthly production by rope dyeing machines |
| 1978 | Completed construction of the Kisa Mill, commenced denim production using Sulzer machines（120 machines） |
| 1980 | Finishing machines were introduced at the Kisa Mill (to complete a fully integrated denim production line, from dyeing to weaving to finishing) |
| 1982 | Established a Weaving Division at the Joge Mill and added Sulzer machines to make a total of 120 （Operation of 336 machines for the entire Group） |
| 1989 | Opened the Tokyo Office（Koto-ku） Brought in KAPSS (Customer Administration Production Scheduling System) at the Head Office, the Kisa, and the Joge Mills |
| 1990 | CEO: Sadaharu Kaihara President: Yoshiharu Kaihara |
| 1991 | Built the Spinning Factory in the Kisa Mill and commenced the OE thread spinning line *With this completed, the fully-integrated thread and denim production line from spinning, dyeing, weaving to finishing begun operations Company name changed from Kaihara Textile Mills Ltd. to Kaihara Corporation |
| 1992 | Held the Kaihara Corporation 100th Anniversary Ceremony and installed a commemorative stone |
| 1993 | Commenced the ring yarn spinning line at the Kisa Mill |
| 1994 | Commenced full production of vintage denim using narrow shuttle looms |
| 1996 | Opened the Kaihara Historical Museum |
| 2000 | Built the Warping and Dyeing Factories in the Kisa Mill Established Marusu Kou Co., Ltd. (Capital: 50 million yen） Obtained all shares of Kaihara Corporation stocks owned by Unitika |
| 2003 | Inauguration of Sadaharu Kaihara as Consultant, Yoshiharu Kaihara as CEO, and Junji Kaihara as President |
| 2004 | With the corporate reorganization, Kaihara became the distribution company and Kaiharasangyo became the manufacturing company Achieved an accumulated total length of 1 million km of rope-dyed material |
| 2005 | Kaiharasangyo merged with Deny Co., Ltd. by absorption, and changed the company name to KAIHARA Co., Ltd. Built the Weaving Factory in Sanwa Mill |
| 2008 | Built the Spinning Factory in Sanwa Mill |
| 2009 | KAIHARA Co., Ltd. merged with Hirohaba Kasuri Cooperative Association and collective finishing process Newly-extablished Rope Dyeing Machine No 1 |
