Nippon Steel Corporation

Ricoh Company, Ltd.

Hoya Corporation

Kabushiki Kaisha Sg

Canon Kabushiki Kaisha

Nippon Steel Sumitomo Metal Corporation

Minoru Ito

Masaki Yamada

Hiroshi Kojima

Kentarou Nakamura

Michio Kaneko

Shohei Urushihara

Yasuhiro Yuasa

Takashi Koyanagi

Satoshi Otake

Makoto Nagasawa

Yoshiyuki Takayama

Kenji Katoh

Takahiro Miyazawa

Takashi Kumai

Shiro Imai

Masatoshi Kominami

Toshiro Terakawa

Tsuyoshi Sakurazawa

Sosuke Yamaguchi

A manufacturing method of plastic lens includes the steps of: preparing a first liquid containing at least one metal oxide and a second liquid containing at least one organosilicon compound; manufacturing a hard coat liquid by mixing the first liquid and the second liquid so that the mass ratio of the solid content of the first liquid to the solid content of second liquid falls within a range of 45/55 to 65/35; and coating the hard coat liquid on a plastic lens substrate to form a hard coat film and then curing the hard coat film.

Plastic lens, manufacturing method thereof, and manufacturing method of hard coat liquid

A highly corrosion-resistant, rust-prevention coating material comprising:

Highly corrosion-resistant, rust-prevention coating material, highly corrosion-resistant steel, and steel structure

Zn alloy particles for high corrosion resistance rust prevention paint containing, by mass %, Mg: 0.01 to 30% and having a balance of Zn and unavoidable impurities, having physical fracture facets and/or cracks of a length of 0.01 &#x3bc;m or more or cracks of a depth of 0.01 &#x3bc;m or more, having an average particle size of 0.05 to 200 &#x3bc;m, and having an aspect ratio of maximum size and minimum size (maximum size/minimum size) of an average value of 1 to 1.5. Also, a high corrosion resistance rust prevention paint containing these Zn alloy particles and a high corrosion resistance steel material and steel structure coated with that paint.

Zn alloy particles for high corrosion resistance rust protection paint, method of production of particles, high corrosion resistance rust protection paint containing particles, high corrosion resistance steel material coated with paint, and steel structure having steel material

Position of an object is detected by a position detector (10) and position data detected by this position detector is stored in a memory circuit (11). A time data supply section (21) supplies time data (.DELTA.t) as a lead compensation parameter. A compensation circuit (22) reads out position data (Dx (-.DELTA.T)) for a preceding time corresponding to the supplied time data (.DELTA.t) from the memory circuit (11) and corrects at least one of present position data (Dx) and target position data (Sx) in accordance with the difference between the read out position data and the present position data detected by the position detector thereby performing lead compensation. A control signal relating to the position of the object is generated in accordance with the present position data corrected by the compensation cirucit and the target position data and the positioning control is made by this control signal.

Positioning control system

A ferromagnetic core fixed to an end of a wire is electromagnetically attracted such that the core and wire are axially moved so that the free end of the wire strikes paper through a ribbon to print a dot. A leaf spring returns the core and wire to a standby position in which the core abuts against a stopper and the leaf spring is resiliently deformed. A washer having an annular axially extending projection is urged by a compression spring against a spring seat, thereby urging the spring seat against a shoulder of a housing. The leaf spring is disposed in an annular gap between the washer and spring seat. The washer serves the dual function of preventing movement and frictional abrasion of the spring seat and absorbing impact energy of the core against the stopper upon axial wear of the core and stopper.

Dot printing apparatus

Growing community of inventors

Tokyo, Japan

Minoru Ito