Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Intellectual Property Mgmt Co., Ltd.

Noriyuki Uchida

Shiro Iida

Kenji Nakano

Tatsuhiro Yabuki

Katsushi Seki

Hidezoh Akutsu

Toshiyoshi Oga

Nobuyuki Tsubakihara

Kazuyoshi Honda

Takashi Ueda

Kenji Itaya

Yasutaka Kogetsu

Sadayuki Okazaki

Satoshi Shibutani

Hiroki Kitagawa

Akiko Nakanishi

Tsutomu Nishioka

Junichi Takahashi

Koki Inoue

Yasuharu Shinokawa

Kohhei Iwase

Takayuki Iwasaki

Seidou Tani

Noriaki Amo

Yusuke Iwase

Tamotsu Andou

A small cylindrical lithium-ion secondary battery provided with a safety mechanism that enables internal pressure to be released when an anomaly occurs. The battery includes an electrode group formed of a positive electrode and a negative electrode that are wound or stacked with a separator interposed therebetween, an electrolytic solution, a battery case that contains the electrode group and the electrolytic solution, and a sealing body. The battery case has an outer diameter of 10 mm or less. The sealing body includes a ring having a through-hole and includes a sheet-like or film-like valve member disposed such that the valve member covers the through-hole of the ring, and a safety mechanism that causes the valve member to cleave when the internal pressure reaches a predetermined pressure is disposed therein. The ring includes protrusions formed of linear ridge lines that protrude toward an inside of the through-hole.

Cylindrical lithium-ion secondary battery

A conveyance systemA of a film-forming apparatusA includes a blowing rollerhaving a function of supplying a cooling gas toward a substrate. The blowing roller has the first shelland the internal block. The first shellhas a plurality of first through holesas a gas supply channel, and is rotatable in synchronization with the substrate. The internal blockis disposed inside the first shell. A manifoldis defined by the internal blockinside the first shell. The manifoldis formed so as to introduce the gas toward the plurality of first through holeswithin the range of a holding angle. A clearancefacing the plurality of first through holesoutside the range of the holding angle is further formed inside the first shell. In the radial direction, the manifoldhas a relatively large dimension, and the clearancehas a relatively small dimension.

Thin film-manufacturing apparatus,thin film-manufacturing method,and substrate-conveying roller

The electrode mount includes a filament coil, paired lead wires supporting the filament coil therebetween in a manner that the filament coil hangs across the lead wires; and bead glass retaining the paired leadwires. The arc tube includes an arc tube main body formed by winding a glass tube, and an electrode fixed to the end portion of the arc tube main body. For this electrode, the electrode mount is used. The fixing of the electrode mount at the end portion of the arc tube main body is made at a region of the lead wires positioned between the filament coil and the bead glass, and the bead glass is disposed outside the arc tube main body.

Electrode mount, arc tube, low-pressure mercury vapor discharge lamp, compact self-ballasted fluorescent lamp and method of manufacturing the arc tube

An arc tube is composed of an arc tube body that is formed by winding a straight glass tube. Two portions of the straight glass tube are spirally wound around an imaginary conical surface. The spiraled portions of the glass tube are sandwiched between a pair of movable fixed plates. The spiraled portions of the glass tube are heated to a temperature equal to or higher than a point at which the glass tube is deformable and yet lower than the softening point of the glass tube. The spiraled portions are flattened by the movable plate moving downwardly under its own weight.

Manufacturing method of an arc tube formed from a glass tube and having a spirally wound section within one plane

Fluorescent lamp

Disclosed is a compact self-ballasted fluorescent lamp with higher luminous efficiency than conventional lamps and improved luminous flux rising characteristics at lamp startup equivalent to those of general fluorescent lamps. The compact self-ballasted fluorescent lamp () includes an arc tube () formed by a bent glass tube () covered with a globe (). The glass tube () has a turning part substantially in the middle between its both ends, a first spiral part starting from one end and wound around an axis toward the turning part, and a second spiral part starting from the turning part and wound around the axis toward the other end. The arc tube () has mercury enclosed therein in a single form. The glass tube () has a substantially circular-shaped cross section and an inner diameter of 7.4 mm. The turning part is connected to the globe () via a heat-conductive member ().

Fluorescent lamp and manufacturing method for arc tube

Arc tube formed from a glass tube and having a spirally wound section within one plane

A mandrel has a main body having a substantially-cone-shape. The main body has, on its circumferential surface, a spiral-shaped groove at which the glass tube to be wound is held. The groove, in cross section, has a contact range in which the glass tube's circumferential surface is in contact. One end of the contact range corresponds to a circumference part of the glass tube in wound state which is closest to the axis of the main body of the mandrel, a part of the groove that extends from the circumference part towards the apex of the main body is parallel to the axis of the mandrel, and the pitch of the groove in the axial direction of the mandrel is formed smaller than the outer diameter of the glass tube. The glass tube wound on the mandrel is easily removed from the main body by lowering the mandrel. In the arc tube formed in such a way, any two glass tube portions, which are adjacent to each other in the axial direction of the arc tube, overlap with each other.

Small arc tube, low-pressure mercury lamp, lighting apparatus, mandrel for forming the arc tube, and production method of the arc tube

The manufacturing method comprises: a softening step of softening a straight glass tube in a heating furnace; a moving and placing step of moving the softened glass tube so that the glass tube is placed on the top of the mandrel; and a winding step of winding the glass tube placed on the top of the mandrel around the periphery of the mandrel. The mandrel is disposed beneath the glass tube starting to get soft, and the glass tube being soft is perpendicularly lowered in order to be placed on the top of the mandrel. In the winding step, the winding speed Vr at which the glass tube is wound around the mandrel is higher than the moving speed Vs at which chuck units holding the ends of the glass tube move toward the mandrel.

Manufacturing methods of double-spiral arc tubes

An arc tube includes an arc tube body and a pair of electrodes. The arc tube body is formed from a glass tube which is double-spirally wound from a middle portion to both ends around a spiral axis. The pair of electrodes are sealed at both ends of the arc tube body. Mercury is enclosed in the arc tube substantially in a single form. Each of the electrodes includes a multiple-coiled filament which is wound substantially one turn in a last coiling stage.

Arc tube and low-pressure mercury lamp that can be reduced in size

A diffuser is formed on an inner surface of a globe included in a compact self-ballasted fluorescent lamp, and a diffuse transmittance of the diffuser &#x3c4; is set at 95%. When designing dimensions of the compact self-ballasted fluorescent lamp, at the same time, a ratio D/Pis set at 0.8 or greater. Here, Pis a helical pitch of an arc tube having a helical configuration, and Dis a half of a difference between a helix diameter of the arc tube and a maximum outside diameter of the globe.

Compact self-ballasted fluorescent lamp, fluorescent lamp and helical glass tube

Growing community of inventors

Hirakata, Japan

Noriyuki Uchida