Canon Kabushiki Kaisha

Kosuke Kurachi

Masahiro Tagawa

Yasuo Ohashi

Masahiko Kubota

Mitsutoshi Hasegawa

Nobuhiro Ito

Akihiko Okano

Atsushi Hiramoto

Tomonori Nakazawa

A laser processing method of processing an object to be processed. The object to be processed has a modified portion and a non-modified portion. A modified layer forming step forms a modified layer of the object to be processed by scanning an inner portion of the object with a condensing point of first laser light. The modified layer (i) has a processing speed with second laser light that is lower than a processing speed of a non-modified portion and (ii) is formed below the non-modified portion. A removing step removes a portion of the non-modified portion. The portion of the non-modified portion ranges from a surface of the object to the modified layer. The removing step includes irradiating the portion of the non-modified portion with the second laser light.

Laser processing method

A manufacturing method provides an airtight container having a first plate structure, a second plate structure having a wiring formed on a surface facing the first plate structure, a frame arranged between the first plate structure and the second plate structure, a first bonding material arranged between the first plate structure and the frame, and a second bonding material arranged between the second plate structure and the frame. The method includes the steps of bonding the first plate structure and the frame by irradiating a first energy beam to the first bonding material by transmitting the first energy beam through the first plate structure, and bonding the second plate structure and the frame by irradiating a second energy beam to the second bonding material by transmitting the second energy beam through the first plate structure and the frame. The first energy beam and the second energy beam are scanned in close proximity to each other and at the same speed.

Airtight container manufacturing method, and image displaying apparatus manufacturing method using airtight container manufacturing method

A method for producing an airtight container includes preparing an assembly having a first substrate and a frame member, the first substrate having an electron-emitting element formed on a first surface thereof, the frame member mounted on the first surface outside an area where the electron-emitting element is formed; forming a temporary assembly having the assembly and a second substrate by bringing the second substrate into contact with the frame member via a joining member such that an inner space is formed; melting the joining member by irradiating the joining member with a laser beam transmitted through the second substrate; and solidifying the melted joining member. The laser beam is applied such that an incident direction at an irradiation position on the joining member does not include components toward the interior of the frame member while the laser beam moves relative to the temporary assembly.

Method for producing airtight container

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Kawasaki, Japan

Kosuke Kurachi