# US 5,703,630 A · Ink jet head manufacturing method using ion machining and ink jet head manufactured thereby

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- Number: US 5,703,630 A
- Document ID: US5703630A
- Status: Granted
- Kind: A
- Application number: 08/758,466
- Filed: 1996-12-02
- Granted: 1997-12-30
- Earliest claimed: 1992-08-31
- Assignees: Canon Kabushiki Kaisha
- Inventors: Keiichi Murakami; Tadayoshi Inamoto; Hirokazu Komuro; Hideaki Mashio; Toshio Suzuki
- Web page: https://patentgrep.com/patent/US5703630A

## CPC

- B41J 2/1629: {wet etching}
- B41J 2/1604: {of the edge shooter type}
- B41J 2/1623: {bonding and adhesion}
- B41J 2/1631: {photolithography}
- B41J 2/1632: {machining}
- B41J 2/1642: {thin film formation by CVD [chemical vapor deposition]}
- B41J 2/1643: {thin film formation by plating}
- B41J 2/1646: {thin film formation by sputtering}
- B41J 2202/11: characterised by specific geometrical characteristics
- Y10T 29/49401: Fluid pattern dispersing device making, e.g., ink jet
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An ink jet recording head manufacturing method for manufacturing ink jet recording head having an ink passage, wherein a droplet of ink is ejected through the passage from an ink ejection outlet at an end of a passage onto a recording material. Ions are injected into a surface having the ink ejection outlet to change a surface property of the surface.

## Claims

### Claim 1

An ink jet head comprising:
a base member having an ejection surface;
an ejection outlet, formed in said ejection surface, for ejecting an ink; and
an ejection energy generating element for generating energy for ejecting the ink,
wherein said ejection surface is given a water-repellant property by ion implantation with a plurality of ions, wherein the ions includes F.sup.+.

### Claim 2 (depends on 1)

An ink jet recording head according to claim 1, wherein the ink is ejected by an electrothermal transducer for generating thermal energy upon electric energy supply thereto.

### Claim 3 (depends on 1)

An ink jet recording head according to claim 1, further comprising a plurality of said ejection outlets which are provided over an entire recording width of the recording material.

### Claim 4 (depends on 1)

An ink jet head according to claim 1, wherein the ions further comprise C.

### Claim 5 (depends on 1)

An ink jet head according to claim 1, wherein the ions further include at least one of N.sup.+ or a Si-containing ion and an ion including a combination of B.sup.+ and N.sup.+.

### Claim 6 (depends on 1)

An ink jet head according to claim 1, wherein the ions comprise a metal ion.

### Claim 7

An ink jet head comprising:
a base member having an ejection surface coated with a surface layer;
an ejection outlet, formed in said ejection surface, for ejecting an ink;
an ejection energy generating element for generating energy for ejection the in,
wherein said surface layer is given a water-repellant property by ion implantation with a plurality of ions, wherein the ions includes F.sup.+.

### Claim 8 (depends on 7)

An ink jet head according to claim 7, wherein said ink ejection energy generating element is a heat generating resistor.

### Claim 9 (depends on 7)

An ink jet recording head according to claim 7, further comprising a plurality of said ejection outlets which are provided over an entire recording width of the recording material.

### Claim 10 (depends on 7)

An ink jet head according to claim 7, wherein the ions further comprise C.

### Claim 11 (depends on 7)

An ink jet head according to claim 7, wherein the ions further include at least one of N.sup.+ or a Si-containing ion and an ion including a combination of B.sup.+ and N.sup.+.

### Claim 12 (depends on 7)

An ink jet head according to claim 7, wherein the ions comprise a metal ion.

### Claim 13

An ink jet head comprising:
a base member including a water-repellant material and having an ejection surface;
an ejection outlet, formed in said ejection surface, for ejecting an ink;
an ink passage, in said base member, in fluid communication with said ejection outlet;
an ejection energy generating element for generating energy for ejecting the ink;
wherein a part of said base member forming said ink passage is given a hydrophilic property by ion implantation with a plurality of ions, wherein the ions include at least one of O.sup.+, H.sup.+ and Au.sup.+.

### Claim 14

An ink jet head comprising:
a plurality of base members, including a member having an ejection surface;
an ejection outlet, formed in said ejection surface, for ejecting an ink; and
an ejection energy generating element for generating energy for ejecting the ink,
wherein said ejection surface is given a water-repellant property by ion implantation with a plurality of ions, wherein the ions includes F.sup.+.

### Claim 15 (depends on 14)

An ink jet head according to claim 14, wherein the ions further comprise C.

### Claim 16 (depends on 14)

An ink jet head according to claim 14, wherein the ions further include at least one of N.sup.+ or a Si-containing ion and an ion including a combination of B.sup.+ and N.sup.+.

### Claim 17 (depends on 14)

An ink jet head according to claim 14, wherein the ions comprise a metal ion.

### Claim 18

An ink jet apparatus comprising:
an ink jet head including a base member having an ejection surface, an ejection outlet, formed in said ejection surface, for ejecting an ink; an ejection energy generating element for generating energy for ejecting the ink; and
a blade for wiping the ejection surface;
wherein said ejection surface is given a water-repellant property by ion implantation with a plurality of ions, wherein the ions include F.sup.+.

### Claim 19

An ink jet apparatus comprising:
an ink jet head including a base member having an ejection surface coated with a surface layer, an ejection outlet, formed in said ejection surface, for ejecting an ink; an ejection energy generating element for generating energy for ejecting the ink; and
a blade for wiping the ejection surface;
wherein said surface layer is given a water-repellant property by ion implantation with a plurality of ions, wherein the ions include F.sup.+.

### Claim 20

An ink jet apparatus comprising:
an ink jet head including a plurality of base members, including a member having an ejection surface, an ejection outlet, formed in said ejection surface, for ejecting an ink; an ejection energy generating element for generating energy for ejecting the ink; and
a blade for wiping the ejection surface;
wherein said ejection surface is given a water-repellant property by ion implantation with a plurality of ions, wherein the ions include F.sup.+.

### Claim 21

An ink jet apparatus comprising:
an ink jet head including a base member of water-repellant material and having an ejection surface, an ejection outlet, formed in said ejection surface, for ejecting an ink; an ink passage, in said base member, in fluid communication with said ejection outlet; an ejection energy generating element for generating energy for ejecting the ink; and
a blade for wiping the ejection surface;
wherein a part of said base member forming said ink passage is given a hydrophilic property by ion implantation with a plurality of ions, wherein the ions include at least one of O.sup.+, H.sup.+ and Au.sup.+.