1
Haruhiko Koto: Small printer. Epson Corporation, Kabushiki Kaisha Suwa Seikosha, Blum Kaplan Friedman Silberman & Beran, March 13, 1984: US04436439 (190 worldwide citation)

A small printer for printing characters on a printing medium especially adapted for use in a portable electronic calculator. The printer includes a frame having a carriage slidably mounted thereon for lateral displacement across the printing medium. An ink jet printing mechanism is carried on the ca ...


2
Haruhiko Koto: Ink supply system for ink jet printers. Shinshu Seiki Kabushiki Kaisha, Kabushiki Kaisha Suwa Seikosha, Blum Kaplan Friedman Silberman & Beran, January 11, 1983: US04368478 (91 worldwide citation)

An ink supply system for an ink printer. The system includes an ink cartridge which supplies ink through a conduit to the print head of the printer. A bubble trapping device is disposed along the conduit and includes a porous member which prevents air bubbles from entering the nozzle of the print he ...


3
Yoshinori Miyazawa, Hidenori Omae, Takayuki Ishii, Haruhiko Koto, Fujio Akahane: Ink jet head. Seiko Epson Corporation, Cushman Darby & Cushman, May 12, 1992: US05113204 (70 worldwide citation)

An ink jet head for a recording apparatus comprises: a nozzle-formed member having a plurality of nozzle orifices; a heating member for heating ink which is solid at ambient temperature to liquefy the ink; a piezoelectric converter spaced apart from the nozzle-formed member for causing the liquefied ...


4
Haruhiko Koto, Junichi Okada, Hiroshi Ishii, Kenji Sawada: Ink jet printer of the ink-on-demand type. Epson Corporation, Blum Kaplan Friedman Silberman & Beran, May 13, 1986: US04589000 (52 worldwide citation)

An ink-on-demand type ink jet printer includes an ink jet head assembly having a printer head and an ink container integrally joined to the printer head. The printer head includes a pressure chamber and ink supply and ejection flow passages communicating respectively therewith. The ink container inc ...


5
Minoru Usui, Haruhiko Koto, Haruo Nakamura, Yozo Shimada, Tomoaki Abe: Drop-on-demand ink-jet printing head. Seiko Epson Corporation, Sughrue Mion Zinn Macpeak & Seas, August 29, 1995: US05446485 (45 worldwide citation)

A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective ap ...


6
Haruhiko Koto: Ink jet recording head. Epson Corporation, Kabushiki Kaisha Suwa Seikosha, Blum Kaplan Friedman Silberman & Beran, June 25, 1985: US04525728 (42 worldwide citation)

An on-demand type ink jet recording head. The ink jet recording head includes a substrate having a plurality of pressurization chambers of substantially rectangular configuration disposed thereon. Ink supply passages and nozzles are provided for each pressurization chamber. Each pressurization chamb ...


7
Haruhiko Koto, Junichi Okada: Highly integrated ink jet head. Kabushiki Kaisha Suwa Seikosha, Shinshu Seiki Kabushiki Kaisha, Blum Kaplan Friedman Silberman and Beran, December 14, 1982: US04364067 (40 worldwide citation)

A head for an ink-on-demand jet dot printer is highly integrated to provide a large plurality of closely spaced dots by combining more than one head of lesser dot density as components of a single unit. The dots from the separate component heads are interspaced on the print recording medium to provi ...


8
Haruhiko Koto: Small size ink jet printer. Epson Corporation, Kabushiki Kaisha Suwa Seikosha, Blum Kaplan Friedman Silberman & Beran, May 22, 1984: US04450454 (39 worldwide citation)

A small size ink jet printer includes a cover which presses against the ink nozzle openings when the printer is inoperative. The printer head is electrically driven but operation of the nozzle cover is at least partially performed manually. Particularly, the nozzle covering operation which needs a l ...


9
Minoru Usui, Haruhiko Koto, Haruo Nakamura, Yozo Shimada, Tomoaki Abe: Drop-on-demand ink-jet printing head. Seiko Epson Corporation, Sughrue Mion Zinn Macpeak & Seas, August 22, 1995: US05444471 (29 worldwide citation)

A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements arranged at regular intervals and fixed at their one ends to a base, the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective ap ...


10
Haruhiko Koto: Non-impact recording device. Epson Corporation, Kabushiki Kaisha Suwa Seikosha, Blum Kaplan Friedman Silberman & Beran, July 24, 1984: US04462035 (29 worldwide citation)

In a substantially continuous process, solid ink is melted and deposited on a recording roller where it solidifies as a surface coating. Subsequently, heat is applied selectively and locally to portions of the roller to remelt the ink. A recording chart pressed against the moving roller picks up and ...