Seeking the highest level of quality in the world since its founding in 1916.

1916 Established Osako Printing Bookbinding Machine Seisakusho in Konya-cho, Kanda-ku, Tokyo (currently Konya-cho, Chiyoda-ku, Tokyo). Manufactured and sold wire binding machines.
1946 Became a company organization and changed the company name to Osako Printing and Book Binding Machinery Seisakusho Limited Parnership Company.
1947 Changed the company name to Osako Seisakusho Limited Parnership Company. The stated capital was JPY330,000 yen. Developed a full-scale GNTK-I model saddle stitcher in response to the needs of the industry and started selling.
1957 Developed and started selling GNTK-II model and III model saddle stitcher.
1960 Completed GN-5 model rotary feeder. Succeeded in labor-saving for bookbinding and attracted attention from the industry.
1964 Developed and started selling the rotary RS-5 model high-speed saddle stitching machine and OS-5 model rotary feeder machine that can be used for high-speed production, such as for weekly magazines with high amounts of publication.
1966 Stated capital became JPY1,320,000 due to a capital increse.
1967 Changed the company name to OSAKO & CO., LTD. and moved to Toshima-ku, Tokyo (stated capital: JPY3,470,000).
1968 Developed and started selling RS-6 model high speed saddle stitching machine and OS-6 model rotary feeder machine.
1969 Moved the headquarters and main factory of OSAKO & CO., LTD. to Saitama.
1971 Completed the three-knife trimmer and succeeded in making the saddle stitcher a complete line.
1972 Stated capital became JPY10,000,000 due to a capital increase.
1973 Signed an agency contract with Consolidated Company in the United States. Began full-scale exports to the US and the world by direct trading.
Established an affiliated company, Osako Seiki & Co., Ltd., in Takahata-machi, Yamagata, in order to respond to the increase in orders.
1974 Opened the Osaka Sales Office in Kita-ku, Osaka-shi.
1977 Stated capital doubled to JPY20,000,000, due to a capital increase.
1980 Expanded second factory of Osako Seiki & Co., Ltd.
1981 Completed 368 model ultra-high speed saddle stitching machine. The machine was exhibited at drupa ’81 in Dusseldorf, Germany.
1982 Started exporting to the former Soviet Union. Delivered 8 units to Pravda and four other companies.
1983 Developed and started selling 173 model saddle stitcher. Introduced the machine at IGAS’83 TOKYO. Exhibited 368 model ultra-high speed saddle stitcher at the International Trade Fair held in Moscow, and received a gold prize from the former Soviet Union Chamber of Commerce.
1984 Exhibited 368 model ultra-high speed saddle stitching machine at IPEX’84in Birmingham, England.
1985 Exhibited 368 model ultra-high speed saddle stitcher and 173 model fully automatic saddle stitching machine at PRINT’85 in Chicago, USA.
Introduced 206 model computer system cross cutter at IGAS’85 TOKYO.
1986 Exhibited 368 model ultra-high speed saddle stitcher and 173 model saddle stitcher in a solo booth at drupa 86 in Dusseldorf, Germany.
Built the third Osako Seiki & Co., Ltd. factory. Installed a 5-sided processing machine made by Okuma Steel. Saddle stitcher and three-knife trimmer machine processes were unmanned, leading to labor-saving.
1987 Introduced the vertical signature stacking style / 525 model ultra-high speed saddle stitching machine at IGAS’87 TOKYO for the first time in Japan and began sales.
1989 Signed an agency agreement with Best Graphics Inc to further expand the US market.
1991 Introduced 535 model ultra-high speed saddle stitching machine, the successor of the 525 model; 665 model saddle stitcher that binds B4 horizontal books with automatic binding; and 207 model and 208 model computer systems cross cutters all together at IGAS’91.
1995 Introduced 378 model ultra-high speed saddle stitching machine and 612-U model reverse binding / normal binding machine at IGAS’95.
2000 Developed and began sales of the OT-2000 model, a fore edge-cut three-knife trimmer machine.
2002 Developed Estar, which features low cost and computerized control. It became the best-selling product in the Asian region.
2003 Introduced and began sales of the Tener ultra-high speed saddle stitcher line which further improved the perfection of the 378 model and the top model Poder at IGAS’03.
2007 Completed new office building with a showroom. Introduced and began sales of Tener Alpha, the successor to the best-selling Tener, at IGAS’07 (photo).
2012 Exhibited two lines of saddle stitcher, Tener Alpha and Micro, at the exhibition of printing and binding machines in Dusseldorf, Germany, one of the four largest exhibitions in the world in May of the same year.
Delivered the exhibited machines to the largest publishing and printing company in the Baltic States (Latvia).
2013 The folded leaf inspection device was developed and introduced as the world’s first in the industry. The first attempt to install it on a three-knife trimmer. Received orders of 24 units from the top three major printing companies.
2018 Exhibited Tener α and Micro at JGAS 2018.
2020 All operations were transferred to Osako Seiki & Co., Ltd. from OSAKO & CO., LTD.
2021 Apr. Developed oversized cover feeder 310AL.
2021 Oct. With 100% share transfer, it became a wholly owned subsidiary of YOSHINO MACHINERY CO., LTD.
2022 Jan. New officers have been elected and assumed by the Extraordinary General Meeting of Shareholders and the Board of Directors.
  • Company Profile

  • History of OSAKO

  • About the production system