Dai Nippon Printing Co., Ltd.

Alps Electric Co., Ltd.

Takahiro Sahara

Yoshihiko Ogino

Kiyoshi Takeuchi

Atsushi Kobayashi

Yoichi Kajimura

Hitoshi Mizuno

Kunio Taguchi

Yasushi Sasagawa

Shota Mitani

Masahiko Igaue

Chikao Ikenaga

Koji Tomita

Masahiro Nagata

Kazuo Umeda

Susumu Nakazawa

Wataru Gotou

Takayuki Terauchi

Keiichi Ganbe

Kazumasa Onuki

Kyoji Yamamoto

A transmission type color calibration chart includes a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.

Transmission type color calibration chart and calibration slide glass

A color calibration viewer used in color calibration, wherein: the relative intensity at a wavelength of 505 nm is 0.80 or more and 0.95 or less, and the relative intensity at a wavelength of 620 nm is 0.65 or more and 0.80 or less, where 1 designates the optical intensity of a peak top in a first wavelength region at a wavelength of 440 nm or more and 470 nm or less; and the ratio (A/B) of A and B is 1.00 or more and 1.46 or less, where A designates the optical intensity at a wavelength of 505 nm, and B designates the optical intensity at a wavelength of 620 nm.

Color calibration viewer, and color calibration set in which same is used

A transmission type color calibration chart comprises a transparent substrate and a color bar group formed on the transparent substrate, wherein the color bar group is constituted by color bars of a plurality of colors containing at least a first color and a second color arranged in a pattern in no particular order, coordinate points of the first color are within a region encompassed by the four points (0.351, 0.649), (0.547, 0.453), (0.380, 0.506) and (0.433, 0.464) on an xy chromaticity diagram, coordinate points of the second color are within a region encompassed by the four points (0.125, 0.489), (0.112, 0.229), (0.270, 0.407) and (0.224, 0.242) on an xy chromaticity diagram, and the transmission spectrum of the first color's color bar and the transmission spectrum of the second color's color bar have peak tops that are respectively separated.

There is provided a leaf spring which can prevent a reduction in the spring strength and can also prevent a reduction in the electrical conductivity when the thickness of the leaf spring is decreased. The leaf spring includes an outer frame portion an inner frame portiondisposed inside the outer frame portion, and spring portions provided between the inner frame portion and the outer frame portion The leaf spring is made of a Cu-based alloy, and has an electrical conductivity of not less than 8% IACS and a 0.2% proof stress of not less than 900 MPa.

Leaf spring, camera module drive mechanism, electronic terminal, and method for producing leaf spring

A leaf spring frame member () comprises: a plurality of leaf spring product parts (A) each of which includes an outer frame part (), an inner frame part () and spring parts (); and a support frame () which is arranged around the leaf spring product parts (A) and supports the leaf spring product parts (A). Each of the leaf spring product parts (A) and the support frame () are connected to each other by connection parts (). A breaking region (), which is breakable, is formed in the connection part (). An outer edge () of the breaking region () is situated on the inside of an outer edge () of the leaf spring product part (A).

Leaf spring frame member

A multilayered printed wiring board includes a plurality of insulating layers; a plurality of wiring layers which are located between the corresponding adjacent insulating layers; and a plurality of interlayer connection conductors for electrically connecting the wiring layers through the insulating layers; wherein a cavity is formed through one or more of the insulating layers so as to insert a first electric/electronic component and an area for embedding a second electric/electronic component is defined for the insulating layers.

Multilayered printed wiring board

A method for manufacturing a printed circuit board assembled panel by a simple process with an excellent material yield and a high conforming product rate. Unit printed circuit boards previously manufactured are arranged in a frame in a prescribed relationship. Then, the printed circuit boards are fixed to one another, and the printed circuit board and the frame body are fixed to one another.

Printed circuit board assembled panel, unit sheet for packaging a printed circuit board, rigid-flexible board and method for manufacturing the same

A multilayered printed wiring board includes a flexible wiring board with wiring layers on both main surfaces thereof; a rigid wiring board with wiring layers on both main surfaces thereof and formed opposite to the flexible wiring board under the condition that an area of the main surface of the rigid wiring board is smaller than an area of the main surface of the flexible wiring board; and an electric/electronic component embedded in the rigid wiring board.

Growing community of inventors

Tokyo-to, Japan

Takahiro Sahara