Toyo Seikan Kaisha, Ltd.

Masaki Morotomi

Akihiko Morofuji

Tsuneo Imatani

Junichi Takada

Kosaku Tsukimi

Seishichi Kobayashi

Kazuhisa Ishibashi

Masanori Aizawa

Ken Takenouchi

Toshinori Moriga

Akihiko Machii

Norio Takeuchi

An object, such as a container cover, is lined on a predefined area of the object by depositing powder on the predefined area. The lining material is formed into a non-spherical powder having a resting angle of 40 degrees or greater. The powder is deposited by fluidizing the powder in a feeder using vibration and conveying the powder through a nozzle to the predefined area. The powder layer deposited on the object is pressed with a molding element to form a lining layer having the predefined shape. The lining thus formed has a predefined thickness distribution and shape with good tightening and sealing properties and corrosion resistance. In addition, no environmentally unsafe processes are required for the precise deposition of powder.

Method for lining with powder

A device for printing an image onto a surface, such as food containers, employs a laser that is scanned across a surface to produce a latent image on a charged photosensitive surface formed on the surface. The surface is moved relative to the laser source while the laser is activated and deactivated according to a pattern of signal pulses from a control circuit. The device thus forms a raster image. To form very fine images, the control circuit must produce pulses with very small steps in duration. The control circuit of the present invention divides a digital value representing a duration of firing of the laser into high and low order bit sequences. The high order bits, representing a value M, are applied to a counter that generates a first pulse M clock cycles long. The low order bits and the first pulse are applied to a delay circuit. The delay circuit generates a delayed version of the first pulse, which is delayed by an amount represented by the low order bits. The first and second pulse signals are logically ORed to produce the control pulse for the laser.

Apparatus for generating a modulated pulse signal

Dots for producing a multiple tone electrostatic latent image are formed by selectively discharging a charged surface with a scanned laser beam. The multiple tones are produced by pulse width modulation of the laser beam according to the tones required in the dots. High resolution is maintained by limiting the diameter of toner particles to 1/5 to 5 times a minimum exposed dot dimension of less than 1 micron. A laser beam exposure device includes a galvanometer mirror from which the scanning laser beam is reflected. The galvanometer mirror is tilted in synchronism with the conveying direction of the surface being scanned in order to maintain focus of the laser beam on the surface.

Process for printing on a surface of an object utilizing a specific

A printed metallic container comprising a metallic substrate provided with a titanium oxide-containing organic resin coat film layer as a substrate coat film for printing having a photosensitive characteristic of I.times.t.sub.1/2 &lt;100 mW.multidot.sec/cm.sup.2 (I: light intensity, t.sub.1/2 : light attenuation half-life of surface potential). A multicolor printing method comprising continuously rotating and delivering a metallic containers, uniformly charging the containers wtih charge phases shifted and exposing the containers by moving light from a light source in synchronism with the rotation delivery of the containers.

Printed metallic container and method for multicolor printing thereof

Multicolor printing method for container

Multiple color printing method for metallic container and thin plate

Growing community of inventors

Kanagawa, Japan

Masaki Morotomi