**Exhibit 12****302 Certification**I, Fujio Mitarai, certify that: 1. I have reviewed this annual report on Form 20-F of Canon Inc.;  2. Based on my knowledge, this report does not contain any untrue statement of a materialfact or omit to state a material fact necessary to make the statements made, in light ofthe circumstances under which such statements were made, not misleading with respect to theperiod covered by this report;  3. Based on my knowledge, the financial statements, and other financial informationincluded in this report, fairly present in all material respects the financial condition,results of operations and cash flows of the company as of, and for, the periods presentedin this report;  4. The company’s other certifying officer(s) and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined in Exchange ActRules 13a-15(f) and 15d-15(f)) for the company and have: (a) Designed such disclosure controls and procedures, or caused suchdisclosure controls and procedures to be designed under our supervision, to ensurethat material information relating to the company, including its consolidatedsubsidiaries, is made known to us by others within those entities, particularlyduring the period in which this report is being prepared;  (b) Designed such internal control over financial reporting, or caused suchinternal control over financial reporting to be designed under our supervision, toprovide reasonable assurance regarding the reliability of financial reporting andthe preparation of financial statements for external purposes in accordance withgenerally accepted accounting principles;  (c) Evaluated the effectiveness of the company’s disclosure controls andprocedures and presented in this report our conclusions about the effectiveness ofthe disclosure controls and procedures, as of the end of the period covered by thisreport based on such evaluation; and  (d) Disclosed in this report any change in the company’s internal controlover financial reporting that occurred during the period covered by the annualreport that has materially affected, or is reasonably likely to materially affect,the company’s internal control over financial reporting; and 5. The company’s other certifying officer(s) and I have disclosed, based on our mostrecent evaluation of internal control over financial reporting, to the company’s auditorsand the audit committee of the company’s board of directors (or persons performing theequivalent functions): (a) All significant deficiencies and material weaknesses in the design oroperation of internal control over financial reporting which are reasonably likelyto adversely affect the company’s ability to record, process, summarize and reportfinancial information; and  (b) Any fraud, whether or not material, that involves management or otheremployees who have a significant role in the company’s internal control overfinancial reporting.Date: March 28, 2008         /s/ Fujio Mitarai   Fujio Mitarai   Chairman & CEO  
 

 
     **302 Certification**I, Masahiro Osawa, certify that: 1. I have reviewed this annual report on Form 20-F of Canon Inc.;  2. Based on my knowledge, this report does not contain any untrue statement of a materialfact or omit to state a material fact necessary to make the statements made, in light ofthe circumstances under which such statements were made, not misleading with respect to theperiod covered by this report;  3. Based on my knowledge, the financial statements, and other financial informationincluded in this report, fairly present in all material respects the financial condition,results of operations and cash flows of the company as of, and for, the periods presentedin this report;  4. The company’s other certifying officer(s) and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined in Exchange ActRules 13a-15(f) and 15d-15(f)) for the company and have: (a) Designed such disclosure controls and procedures, or caused suchdisclosure controls and procedures to be designed under our supervision, to ensurethat material information relating to the company, including its consolidatedsubsidiaries, is made known to us by others within those entities, particularlyduring the period in which this report is being prepared;  (b) Designed such internal control over financial reporting, or causedsuch internal control over financial reporting to be designed under oursupervision, to provide reasonable assurance regarding the reliability offinancial reporting and the preparation of financial statements for externalpurposes in accordance with generally accepted accounting principles;  (c) Evaluated the effectiveness of the company’s disclosure controls andprocedures and presented in this report our conclusions about the effectiveness ofthe disclosure controls and procedures, as of the end of the period covered bythis report based on such evaluation; and  (d) Disclosed in this report any change in the company’s internal controlover financial reporting that occurred during the period covered by the annualreport that has materially affected, or is reasonably likely to materially affect,the company’s internal control over financial reporting; and 5. The company’s other certifying officer(s) and I have disclosed, based on our mostrecent evaluation of internal control over financial reporting, to the company’s auditorsand the audit committee of the company’s board of directors (or persons performing theequivalent functions): (a) All significant deficiencies and material weaknesses in the design oroperation of internal control over financial reporting which are reasonably likelyto adversely affect the company’s ability to record, process, summarize and reportfinancial information; and  (b) Any fraud, whether or not material, that involves management or otheremployees who have a significant role in the company’s internal control overfinancial reporting.Date: March 28, 2008         /s/ Masahiro Osawa   Masahiro Osawa   Managing DirectorGroup Executive of Finance andAccounting Headquarters