Mitsubishi Pencil Company, Limited

Asahi Organic Chemicals Industry Co., Ltd.

Yusuke Koizumi

Kyo Nakayama

Tsuyoshi Nishida

Satoru Okabe

Masashi Sakagami

Shinichi Ushiku

Takamasa Fukuda

Masaya Yamada

Hiroki Yamada

A mechanical pencil includes a ball chuck, a rotation drive mechanism having a rotary part, a feedout cam face having a step part in the axial direction, an input member rotating upon receiving a rotational drive force of the rotary part, and an output member having an abutting part abutting against the feedout face and a slider provided with a holding chuck holding lead, the abutting part moves along the feedout face corresponding to rotation of the output member and so that advancing motion of the slider when the abutting part drops into the drop difference causes lead held by the holding chuck to be pulled out by the ball chuck, and further including a clutch mechanism transmitting rotational movement of the input member to the output member.

Mechanical pencil

A mechanical pencil includes a ball chuck, a rotation drive mechanism having a rotary part and receiving an axial direction retraction operation due to writing pressure received by the lead held by the ball chuck and an axial direction advance operation due to release of the writing pressure to drive the rotary part to rotate in one direction, a feed cam face having a ring-shaped cam face vertical to the axial direction and an axial direction step part, and a slider having an abutting part abutting against the feed cam face and a holding chuck holding a lead and rotating upon receiving a rotation drive force of the rotary part, which is configured so that the lead held by the holding chuck is pulled out from the ball chuck due to the advance operation of the slider.

A multifunction pen is provided including a refill for a writing implement such as a ballpoint pen on a tip end side and including an electromagnetic induction-based electromagnetic induction refill on a rear end side such that there is no need to perform a switching operation between the writing refill and the electromagnetic induction refill. The multifunction pen includes a shaft tubeincluding openings at both of a tip end and a rear end, a writing refillthat is housed inside the shaft tubeand that includes a writing tip exposed through the opening at the tip end, and an electromagnetic induction refillthat is housed inside the shaft tube, that is exposed through the opening at the rear end, and that is employed in electromagnetic induction-based input.

Multifunction pen

A multifunction pen includes plural refills including an electromagnetic induction touch pen. A knock operation to one of knock rods each of which is connected to a rear end of each of the plural refills causes a tip of one refill of the plural refills to move from a standby position in which the tip stays inside a shaft tube to an in-use position in which the tip projects from a tip end opening of the shaft tube. At least one refill from writing refills other than the electromagnetic induction touch pen is provided with a metal writing tip, and a tip of the electromagnetic induction touch pen at the in-use position is separated from the tips of the writing refills at the standby position by a distance such that electromagnetic induction by the electromagnetic induction touch pen is not affected by the tips of the writing refills.

A handwriting input device configured to obtain hand-written data of an electronic pen on a coordinate detection surface of a coordinate input device by an electromagnetic induction effect of the coordinate input device and the electronic pen. The electronic pen includes a first resonance circuit including a coil, a capacitor, and a core, a mechanical pencil unit configured to perform writing on a paper sheet placed on the coordinate detection surface, and a writing pressure detecting portion configured to detect a writing pressure such that a part of the mechanical pencil unit is pushed by receiving the writing pressure applied to a lead projecting from a distal end of the mechanical pencil unit. The detection of the writing pressure causes the coordinate input device to obtain the hand-written data corresponding to a handwriting on the paper sheet while writing is performed on the paper sheet with the electronic pen.

Handwriting input device

The present invention is a chuck body () provided with: a hollow, substantially cylindrical fastener () having a tapered inner surface () in which the diameter of the hole gradually changes along the axial direction; and a chuck () having a divided end part () divided into two or three, the divided end part () having a tapered outer surface () that can enter or exit from the fastener () and that comes into contact with the tapered inner surface () of the fastener () when entering the fastener (). When the divided end part () of the chuck () closes in the fastener () and holds the core (), the angle of the tapered outer surface () of the chuck () relative to the center axis line of the chuck () is substantially identical to the angle of the tapered inner surface () of the fastener ().

Chuck body and mechanical pencil

To provide a light-weight resin member, for a valve, which has high strength and can be used in a high-temperature atmosphere, and is also excellent in chemical resistance and corrosion resistance. A resin member for a valve, which is produced by molding a molding material having a tensile strength of 80 to 400 MPa at normal temperature, and a resin member for a valve, which is produced by molding a molding material having a tensile strength of 75 to 350 MPa at 120&#xb0; C. are disclosed. There is also disclosed a resin member for a valve, which is produced by molding a molding material comprising a resin composition containing an epoxy acrylate resin (A) having a hydroxyl value of 60 to 100, a polyisocyanate compound (B) having 0.1 to 1.5 isocyanate groups per one hydroxyl group of the epoxy acrylate resin (A), a curing agent (C) and an internal mold release agent (D), and 20 to 70% by weight of a fiber reinforcing material (E).

Growing community of inventors

Tokyo, Japan

Yusuke Koizumi